Last Updated: December 13, 2019 (Refresh Now)

ELECOM Trackball Mouse M DPT1MRXBK Wired Wireless and Bluetooth Gaming High Performance Ruby Ball Advanced Responsiveness 8 Mappable Buttons Smooth Scrolling Extra Large DEFT PRO Black

Last Updated: December 13, 2019 (Refresh Now)
7.5
SCORE
/10
Total Reviews
553
Old Reviews
39
Unverified
29
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Review Analysis - 485 recent, verified reviews

Detailed Mode
Comfort
 265
ball, mouse, palm, elecom, trackballs
+78%
-22%
comment
" ...  This led me to try the Kensington trackballs, Logitech, and even another Elecom (whatever the tiny one is) version. ... It caused Carpal Tunnels, severe nerve damage, and coupled with a preexisting C5-C6 injury, I became reduced to using my computer less than an hour a month. ... I thought I'd try one more trackball, because I NEEDED to be able to work. ... My arm rests comfortably and I have been able to do at least a couple of hours of work per day and most importantly, the pain from Carpal Tunnels is SEVERELY reduced.  ...  "
comment
" ...  I have used the famous Logitech M570 and I quite liked it. ... However I have heard from others that they prefer fingertip balls best. ... The thumb balls were much more natural to use at first since the key placements (at least on the m570) were pretty much identical to what you would find on a regular mouse. ... What I mean by this is that when you go to move the trackball it initially sticks until you start moving it. ... Every day that I have used the trackball it has gotten smoother. ... The other thing that this thing does differently from the m570 is the fact that it is much flatter, this can stress your wrists if you don't position your hand just right. ... I have pretty big hands and every time I put my hand on the HUGE it feels like it was made for my hand. ... This is quite comfortable for me but I think it could benefit greatly from a tilting function. ... The biggest advice I can give you is to use the natural oils in your hands to break the trackball in, I have heard of some people using some sort of dry lube to help but I don't think you need to go that far. ... I just played with the trackball a lot while I was at my desk and this really helps to break it in faster. ... It isn't as huge but for some it may be more comfortable.  ...  "
comment
" ...  I found there is less strain on my hands using the mouse with both hands equally in comfort. ... The size of the ball allows me to frequently use my left and right hand palms and finger tips.  ...  "
comment
" ...  After first using, felt a little uncomfortable, but now using for two weeks, feels like an extension to my hand. ... I have carpal tunnel, and my hand and fingers do not hurt after using this for long periods.  ...  "
comment
" ...  This is, truly, a suitable replacement for your old, broken, and worn-out Microsoft Trackball Explorers.  ...  "
comment
" ...  Tried for years with other trackballs and none felt like my MS one. ... This Elecom trackball is the sequel to the MS Trackball Explorer that sells for hundreds.  ...  "
comment
" ...  See, the ergonomics on most mice/trackballs work because of the curve. ... It doesn't matter that my hand is large because the curve means I don't have to have it supporting my entire hand. ... The ball is large enough that I can use two fingers, which helps with precision.  ...  "
comment
" ...  If you miss the Logitech trackman that they discontinued, you will love this.  ...  "
Mouse
 181
trackball, logitech, elecom, explorer, assistant
+69%
-31%
comment
" ...  It's also more comfortable than the mouse I was using.  ...  "
comment
" ...  I found there is less strain on my hands using the mouse with both hands equally in comfort. ... If you use the mouse frequently and all day as I do you should invest in rechargeable batteries and a charger. ... Once you use this mouse you would not want to use any other mouse because you can program the buttons to perform some of the functions of your key board keys. ... This makes the mouse addictive. ... The mouse will continue to perform very well until the next window 10 start up. ... I may even choose to move to another mouse with more stable software if this problem continue.  ...  "
comment
" ...  I've been using trackballs (whenever that was an option) for technical work and writing since 1962 (before the mouse was even invented). ... I've been forced to use a mouse or trackpad sometimes, but nothing can beat a trackball for me. ... I had no difficulty in finding the Mouse Assistant 5 software on the Elecom.jp Web site and it installed without any problems under Win 10.  ...  "
comment
" ...  This is an alright mouse, it has it's pros and cons. ... This mouse is fantastic in form and function, but I have issues with the wireless version staying connected. ... Overall I am happy with this mouse, despite it's shortcomings, it has a wonderful feel and is very ergonomic once you get used to it.  ...  "
comment
" ...  The ergonomics and build quality of this mouse make any annoyances forgivable (at least for me).  ...  "
comment
" ...  On the left is a standard HP mouse that comes with any new HP PC or docking station.  ...  "
comment
" ...  I'm still keeping my one remaining Microsoft trackball for my Windows 7 graphic workstation, may it live eternally.  ...  "
comment
" ...  As for the mouse, if you have carpal tunnel or don't want it, a trackball mouse is the way to go.  ...  "
Controls
 142
trackball, mouse, left click, right click, programmable
+64%
-36%
comment
" ...  It fits great in my hand and I love having all the extra buttons to set how I want.  ...  "
comment
" ...  Even able to use it with my left hand using my fingers to scroll and press the buttons.  ...  "
comment
" ...  It works well, although some games do not recognize the last 3 extra buttons.  ...  "
comment
" ...  5) It has 5 additional programmable buttons instead of only 2 additional on the MSTE - this is GREAT for MMORPG's ... 9) The 2 functions buttons on the left side of the trackball are much easier to reach and press than you think - they're also very useful in games for stuff like grenades or health packs/whatever :P ... 14) using the forwards and backwards buttons are actually easier than the MSTE  ...  "
comment
" ...  Extremely comfortable and very well placed buttons.  ...  "
comment
" ...  DPI switch is easy to access and programmable keys allow for personalization.  ...  "
comment
" ...  It is comfortable and has a good number of buttons.  ...  "
comment
" ...  The ergonomics are solid, though the buttons are not perfect for me (the Fn1, Fn2 buttons are easy to accidentally engage and I don't love the > button.  ...  "
Device Compatibility
 73
microsoft trackball explorer, dongle, wireless, windows, ms trackball explorer
+71%
-29%
comment
" ...  I have it connect to a kvm switch, so I can use 2 different computers.  ...  "
comment
" ...  I plan to buy several more for my other computers.  ...  "
comment
" ...  Fortunately, by then Macs had multitouch trackpads, so I used those instead.  ...  "
comment
" ...  That said, this is a great way to interact with your very own PC  ...  "
comment
" ...  I was a long time user of the Microsoft Trackball Explorer.  ...  "
comment
" ...  A worthy successor to my beloved Microsoft Trackball Explorer.  ...  "
comment
" ...  I recently got a Mac for work and the standard logitec software didn't provide this functionality.  ...  "
comment
" ...  But great for my laptop I use at home.  ...  "
Product Reliability
 62
week, trackball, stopped working, trackball explorer, stopped
+60%
-40%
comment
" ...  I have two of them and cannibalized one to make the other continue working.  ...  "
comment
" ...  Well made and packaged well Working great  ...  "
comment
" ...  And I fully agree, having used it for almost half a year now.  ...  "
comment
" ...  After having it for several months, I stumbled on the HUGE.  ...  "
comment
" ...  No issues whatsoever.  ...  "
comment
" ...  And so far - no problems!  ...  "
comment
" ...  Hope Elecom will solve this problem one day.  ...  "
comment
" ...  After trying this thing out for a few weeks I can definitely say that I am one of them.  ...  "
Build Quality
 41
build quality, bearings, well made, foam, kensington
+66%
-34%
comment
" ...  I was also attracted to the HUGE's cushioned palmrest, but the DEFT PRO's textured plastic is tactile and satisfying.  ...  "
comment
" ...  I am not sure how well it will hold abuse, so I may end up buying another one to keep on reserve, should it be discontinued.  ...  "
comment
" ...  You can feel that it is tight and well made.  ...  "
comment
" ...  It seems well made and cleanable  ...  "
comment
" ...  Build quality seems to be good and sturdy.  ...  "
comment
" ...  The general construction feels really good and well made.  ...  "
comment
" ...  The soft material it's made of is super comfortable (more on this below though, might present a durability issue). ... While I like the soft material on the palm rest I feel like it is going to have durability problems.  ...  "
comment
" ...  17) solid design, seems like it'll be a keeper for the next 20 years . ... 19) the ball doesn't come loose easily and rolls around everywhere by turning it upside down you gotta press againt the ball the get it out. ... So ball is more secure basically.  ...  "
Gaming
 40
mouse, buttons, trackball, games, game
+85%
-15%
comment
" ...  I was worried that the new design would takes weeks to grow accustomed to for general use, much less gaming, but it didn't even take two days.  ...  "
comment
" ...  I use the HUGE for everyday and gaming and use this one for work.  ...  "
comment
" ...  I will stick with my dedicated gaming mouse (currently Logitech G903)  ...  "
comment
" ...  And trackball mice are not generally recommended for gaming, although I've done it and the performance has been fine.  ...  "
comment
" ...  Looking for a gaming trackball for a long time,finally it's here!  ...  "
comment
" ...  Bought this as a gift for Husband for gaming and work .  ...  "
comment
" ...  As one of the few people who prefer trackball mice for gaming, this mouse is a dream come true.  ...  "
comment
" ...  this works well as a gaming mouse as long as it's a point and click not fps, but for someone that has always used a trackball I would say you will like this for both  ...  "
Ease of Use
 38
trackball, scroll wheel, easy to use, stiff, setup
+74%
-26%
comment
" ...  loved the ergonomic setup.  ...  "
comment
" ...  The flexibility of the configuration software allows almost any combination and options more than most others.  ...  "
comment
" ...  I wanted to love this thing, even programmed a custom switch which was very easy to do.  ...  "
comment
" ...  I found the DEFT PRO easy use within minutes of use.  ...  "
comment
" ...  DPI switch is easy to access and programmable keys allow for personalization.  ...  "
comment
" ...  It has tons of useful functions built in and the software is straightforward and easy to use.  ...  "
comment
" ...  I find the layout is very intuitive.  ...  "
comment
" ...  The extra buttons allow for easy custom configurations.  ...  "
Software Platform
 36
windows, windows 10, os, elecom, right click
+36%
-64%
comment
" ...  I really hate to give this nicely built trackball a 2 star rating, but if the Mac-compatible programming software doesn't pop and work after being advertised that it will, it really detracts from the device's usefulness.  ...  "
comment
" ...  just unusable with Apple OS Mojave.  ...  "
comment
" ...  I am constantly having to switch back and forth to get it to keep running or start running again on Windows 10.  ...  "
comment
" ...  - I wish the software were better.  ...  "
comment
" ...  I couldn't get the add-on utility to install on windows 10 it gave me an error.  ...  "
comment
" ...  Not at any setting, either in the hardware or in the software. ... I have searched the Internet, but other than finding others with the similiar issue, there are no solutions.  ...  "
comment
" ...  - The website that you have to go to download the software is also terrible and hard to find your way around. ... - When you do download the software, it is not intuitive as a Microsoft program would be. ... So you have to work your way through some trial and error and struggle with the on line instructions.  ...  "
comment
" ...  I went to the company website to download the control software for Macintosh. ... I could not get it to function on High Sierra or Mavericks OS. ... Software problems were the same, but it is much more responsive and reliable.  ...  "
Drivers
 36
drivers, website, japanese, elecom, site
+22%
-78%
comment
" ...  It's not clear to me whether this is a hardware problem or a driver issue, but it's happening more and more, across multiple applications including Firefox, Word, and Minecraft.  ...  "
comment
" ...  First few days are hard to get use to, very different then am use too and you have to install the driver for the extra button options. ... But you have to get the driver from the Japanese website, cause the driver on the US website is not update with this mouse.  ...  "
comment
" ...  Problem is the driver is not digitally signed. ... I don't remember, but if required the full path is C:\windows\system32\drivers\ElcMouLFlt.sys ... & C:\windows\system32\drivers\ElcMouUFlt.sys ... The 2 elcomm drivers that need to be digitally signed can also be seen if you just goto device manager, mice, Elcomm Trackball, driver, driver details. ... The other 3 drivers are Microsoft files.  ...  "
comment
" ...  Of course similar issues as others with the driver and getting the software to manage the buttons.  ...  "
comment
" ...  There are supposed to be more function buttons but the driver isn't compatible. ... The only reason this isn't a full 5 stars is because the driver doesn't currently support Win10 to get full function of those extra buttons, if it did, this would be the best pointing device I've ever used.  ...  "
comment
" ...  The only other driver is the Microsoft which does nor delete easily and if it is deleted you have no control of any mouse.  ...  "
comment
" ...  You probably also won’t be prepared for the badness of the driver software. ... Download the Japanese drivers and ignore the warning that you are somehow downgrading from the previous version.  ...  "
comment
" ...  Only the basic 3 buttons worked without the proper drivers (which did not come with it).  ...  "
Size
 35
large, desk, huge, hands, ball
+77%
-23%
comment
" ...  BTW, I also purchased the travel case which has been nice. ... I hang it from my backpack with a carabiner.  ...  "
comment
" ...  This one fits the bill.  ...  "
comment
" ...  Personally I like Huge because it’s ball is bigger. ... -USB receiver is very compact.  ...  "
comment
" ...  - I love the size. ... It stays put on my desk. ... - The size of the ball is fantastic.  ...  "
comment
" ...  I love the size.  ...  "
comment
" ...  I use it at work too: it looks very cool on my desk :)  ...  "
comment
" ...  I love the large size.  ...  "
comment
" ...  The different size of the mice are great.  ...  "
Returns
 31
return, back, returning, amazon, sent
+23%
-77%
comment
" ...  It’s just past the return date so I’m stuck with it now.  ...  "
comment
" ...  Edit - the problem seems to be getting worse, and Elecom Japan will not return any attempt to communicate.  ...  "
comment
" ...  This was clearly a used and returned package.  ...  "
comment
" ...  I hate returning things but I am returning this and looking elsewhere.  ...  "
comment
" ...  So I'm sending it back now.  ...  "
comment
" ...  I can't return through Amazon because the return window is now closed.  ...  "
comment
" ...  I'm returning and getting a refund.  ...  "
comment
" ...  I sent the first one back and the replacement had the same fault as the first.  ...  "
Fit
 31
fits, hands, hand, trackball, fits my hand
+71%
-29%
comment
" ...  It stays put on my desk.  ...  "
comment
" ...  This one fits the bill.  ...  "
comment
" ...  This trackball was probably a bit overkill but it feels like a quality unit, fits my extra large hands, and is substantial enough it doesn't move around much.  ...  "
comment
" ...  But, it fits my large hands perfectly.  ...  "
comment
" ...  would the size and fit be good?  ...  "
comment
" ...  I have big-ish hands and this is a super comfortable fit.  ...  "
comment
" ...  It's certainly preferable that a product of this price come perfectly tuned out the box, but that is certainly not the case.  ...  "
comment
" ...  In really like how it fits my hand.  ...  "
Apps
 26
elecom, microsoft trackball explorer, japanese, windows, mapping
+54%
-46%
comment
" ...  I found the software pretty self-explanatory but the help file is good if you need it.  ...  "
comment
" ...  I haven't bothered to install the software to program the other buttons, as I have never really used them on any device.  ...  "
comment
" ...  Like many others who have purchased this, I'm a refugee of the Microsoft Trackball Explorer.  ...  "
comment
" ...  Great replacement option for the discontinued Microsoft Trackball Explorer! ... Only issue I had was remapping the back and forward functions for web browsing.  ...  "
comment
" ...  If you want to make the extra keys do anything, extra (free) software has to be downloaded.  ...  "
comment
" ...  ELECOM's software has gotten better and works great for most applications, but I don't like the default right click mapping and I changed both the right click button to something else and assigned a different button to right click. ... So I basically have to save two profiles to switch back to the default mapping whenever I'm doing any of these tasks and it's quite annoying to have to swap them. ... Additionally, since they are software profiles, you have to set everything up on different computers each time.  ...  "
comment
" ...  Software suit is fairly good for custom macros but may need to adjust to your language so it can be readable.  ...  "
comment
" ...  The company has since updated their software and all the buttons work and have been programmed successfully.  ...  "
Bluetooth
 19
wireless, connection, dongle, wired wireless, trackball
+74%
-26%
comment
" ...  I like the many connection options, but couldn't get bluetooth to pair with my linux desktop (worked fine on an android device).  ...  "
comment
" ...  Bluetooth connects easily, the scroll wheel functions (although it's a tad too sensitive), and the extra buttons function as forward/back (since I can't use the software, I am stuck with those - but honestly I just wanted to mouse and click, so I am happy with the extra functionality!  ...  "
comment
" ...  Great trackball: it's really hard to find a good trackball in 2019, near impossible to find a good Bluetooth one ... Super flexible configuration wired + wireless w/dongle 2.4ghz + Bluetooth (choose one)  ...  "
comment
" ...  Beyond that, the Bluetooth operation seems responsive and accurate.  ...  "
comment
" ...  Love how easy it was to connect to Bluetooth.  ...  "
comment
" ...  The Bluetooth works well.  ...  "
comment
" ...  It can connect with bluetooth, as well as with the wifi-USB port.  ...  "
comment
" ...  Love that it is wireless and can work on either Bluetooth or proprietary dongle (included).  ...  "
Design
 19
looks, red, feels, desk, beautiful
+95%
-5%
comment
" ...  And it just looks awesome.  ...  "
comment
" ...  + is beautiful and big  ...  "
comment
" ...  It's also beautiful to look at.  ...  "
comment
" ...  Really like the design of this compare to every other trackballs out there that are based on thumb design or even others that you use your fingers on.  ...  "
comment
" ...  I loved it and I used it until the paint started coming off.  ...  "
comment
" ...  It feels and works great!  ...  "
comment
" ...  The general construction feels really good and well made.  ...  "
comment
" ...  It is elegant in its design, and I can use it all day without issue.  ...  "
Battery Life
 19
battery, batteries, months, rechargeable, power
+74%
-26%
comment
" ...  Battery life is good too - still on the first set of batteries.  ...  "
comment
" ...  This has great battery life and very responsive. ... Likely easier if it recharged an internal 18650 cell.  ...  "
comment
" ...  I also like that I can control the power draw from battery to maximize battery life.  ...  "
comment
" ...  Battery longevity has turned out to be very good.  ...  "
comment
" ...  Battery life has been really good so far.  ...  "
comment
" ...  A separate rechargeable AA battery will need to be purchased.  ...  "
comment
" ...  So if your looking for BATTERY LIFE .  ...  "
comment
" ...  With that, my batteries have lasted over 3 months, so this is pretty impressive.  ...  "
Overall performance
 17
smooth, ball, pointer, dpi, cursor
+76%
-24%
comment
" ...  This mouse has a really smooth finger operated ball and the speed can be adjusted with the DPI switch.  ...  "
comment
" ...  The same is true for a trackball, but I found it much harder to spin the ball at a consistent speed to get to the edge of the screen on a 15" Mac.  ...  "
comment
" ...  Precision/speed button is nice.  ...  "
comment
" ...  And they're set at speeds that really seem to correspond to what I consider "low", "medium" and "high", unlike "fast", "faster" and "lunatic", which is nice.  ...  "
comment
" ...  It is very fast to navigate with.  ...  "
comment
" ...  I've finally been disconnected from my previous mouse, and this one is growing on me FAST.  ...  "
comment
" ...  I use it for work and it runs so smooth.  ...  "
comment
" ...  It does take a little while for the ball and rollers to become super smooth, but it's buttery now!  ...  "
Ports
 17
receiver, usb port, unplug, trackball, dongle
+47%
-53%
comment
" ...  Changed to another USB port.  ...  "
comment
" ...  I'm even using a USB extension cable, and the distance to trackball from receiver is less than 24 inches.  ...  "
comment
" ...  Only way i could get it to work was with the optional USB cable.  ...  "
comment
" ...  Mine would stop working almost daily to where I would have to reach around the back of my computer, and remove and reinsert the usb plug.  ...  "
comment
" ...  On the downside for me it is having to unplug and replug wireless dongle to get puter to recognize the unit is there .  ...  "
comment
" ...  I moved the connector to a USB port on top of my desk and replaced the batteries and it still happens.  ...  "
Cleaning
 17
cleaning, ball, trackball, bearings, cleaned
+76%
-24%
comment
" ...  As says in the title, do not use alcohol/isopropyl to clean the plush wrist rest, this damaged mine.  ...  "
comment
" ...  Need to keep the bottom of the DEFT Pro and my desk surface clean so the trackball doesn't slip around.  ...  "
comment
" ...  Ball pops out for easy cleaning and works as expected.  ...  "
comment
" ...  Has a great base, the trackball needs regular cleaning for gaming purposes to cut down on ball sticking.  ...  "
comment
" ...  I've ensured that the ball is clean and that the ruby support bearings inside the cup are also clean.  ...  "
comment
" ...  It is easy to clean and well designed.  ...  "
comment
" ...  18) easier to clean and maintain than the MSTE - still has those lil balls you gotta clean with a thumb tack :)  ...  "
comment
" ...  Cleaning is super easy.  ...  "
Price
 15
price, worth, waste, huge, spend
+73%
-27%
comment
" ...  Spend a little more and get this one, it's well worth it.  ...  "
comment
" ...  I was not sure if it would be worth the price but it is.  ...  "
comment
" ...  But a couple niggles are worth noting.  ...  "
comment
" ...  If it's comfy and will last 10+ years like my Microsoft - it's worth the money.  ...  "
comment
" ...  This is a nice substitution and beats the logitech stuff I've used in the past, but I wish I had just spent the money on new bearings for my MSTBE instead of buying this.  ...  "
comment
" ...  I think this might just be the best trackball you can get for the money.  ...  "
comment
" ...  As it is though at just over 50$ it was definitely worth it to try out.  ...  "
comment
" ...  But then I found this one (Elecom wired HUGE model specifically), but I was apprehensive about it for the price.  ...  "
Marketplace
 15
support, manufacturer, website, replacement, elecom
+60%
-40%
comment
" ...  I thought about the rebuild service but then found this one on Amazon.  ...  "
comment
" ...  Why is this a big deal?  ...  "
comment
" ...  Take a look at the picture attached.  ...  "
comment
" ...  As you can see in the first image I shared, this thing is very big.  ...  "
comment
" ...  I just received this today.  ...  "
comment
" ...  I bought an Amazon warehouse deal at a decent discount.  ...  "
comment
" ...  The one I ordered was fulfilled and shipped from Amazon. ... I've seen other listings from sellers that appear to be in Japan based on the shipping times, but I prefer direct from Amazon when possible so I can go straight to JeffyB's house in case I have any problems.  ...  "
Setup
 12
japanese, setup, instructions, english, configure
+58%
-42%
comment
" ...  The flexibility of the configuration software allows almost any combination and options more than most others.  ...  "
comment
" ...  It installed with no issues and allows you to configure all the buttons however you like.  ...  "
comment
" ...  It's the least fatiguing of any setup I've used. ... I haven't bothered to install the software to program the other buttons, as I have never really used them on any device.  ...  "
comment
" ...  loved the ergonomic setup.  ...  "
comment
" ...  It has tons of useful functions built in and the software is straightforward and easy to use.  ...  "
comment
" ...  Likes: the software is easy to find and download, quick install, asks for a reboot but ok, allows very easy customization for any random thing I try to set up, and just works solidly and well.  ...  "
Keyboard
 9
mouse, trackball, keys, function keys, uninstalled
+56%
-44%
comment
" ...  I purchased this ELECOM trackball because I use my MacBook in my chair in the living room and when I work, my fingers get tired pressing on the touchpad for hours at a time.  ...  "
comment
" ...  The trackball is great on the mechanical stand point.  ...  "
comment
" ...  The function keys are buttons 10-12, easy to re-map and, using xte and xbindkeys, map keyboard keys to them.  ...  "
comment
" ...  Since I have a backlit keyboard, I miss having my trackball also lit.  ...  "
comment
" ...  It is the common commands that are needed in drawing available without lifting my fingers to get to the keyboard.  ...  "
Shave Quality
 8
ball, small, nice, movements, large
+100%
comment
" ...  Been using trackballs since early 90s I like a large ball that is silky smooth without friction.  ...  "
comment
" ...  One more thing I didn’t have to replace ruby bearings because ball moves buttery smooth.  ...  "
comment
" ...  The ball itself was smooth and nearly perfect.  ...  "
comment
" ...  Small movements very precise and smooth.  ...  "
comment
" ...  My Orbit glides super smooth.  ...  "
comment
" ...  Once you figure out how to get it it's smooth sailing.  ...  "
comment
" ...  it's very nice and smooth.  ...  "
comment
" ...  The ball is large and smooth rolling.  ...  "
Display Clarity
 8
ball, trackball, multiple screens, jumping, dpi
+75%
-25%
comment
" ...  I have three screen and it makes my job so much easier.  ...  "
comment
" ...  Trust me bigger ball is better especially if you have multiple screens.  ...  "
comment
" ...  A must have for users of multiple screens.  ...  "
comment
" ...  There is a switch on the side to change the DPI, the number of pixels it detects for tracking the ball, which makes the sensitivity higher or lower.  ...  "
comment
" ...  - The trackball is very large, allowing both rapid movement across the screen and very fine, delicate, movements to move the cursor with great precision.  ...  "
Band
 7
rest, wear, soft, material, hand
+100%
comment
" ...  Has a wonderful wrist rest.  ...  "
comment
" ...  -Soft material (rubberized) where you place your wrist.  ...  "
comment
" ...  The housing is more compact than that of the Kennsington with its wrist rest but allows for a neutral wrist position for my medium-sized hand.  ...  "
comment
" ...  After a few hours worth of use my wrist feels the crimp.  ...  "
comment
" ...  Love the wrist rest.  ...  "
comment
" ...  When I wear my wrist brace the grip is perfect, so for that I'm pleased it's not any longer.  ...  "
comment
" ...  It also has a nice wrist rest made from a soft material, which is a nice feature.  ...  "
Delivery
 7
box, received, package, opened, impression
+71%
-29%
comment
" ...  Well made and packaged well Working great  ...  "
comment
" ...  Box has cardboard window you can open .  ...  "
comment
" ...  I just received this today.  ...  "
comment
" ...  This one arrived today and it's OK.  ...  "
comment
" ...  The one I ordered was fulfilled and shipped from Amazon.  ...  "
For Travel
 6
smaller, size, bought, use, one
+100%
comment
" ...  I've thrown it in my laptop/camera bag to travel with, at least a dozen times, and it still looks like new.  ...  "
comment
" ...  BTW, I also purchased the travel case which has been nice.  ...  "
comment
" ...  The smaller one I bought with this one same manufacture is same quality and good size for travel.  ...  "
comment
" ...  and the smaller wireless on for when I'm on the road.  ...  "
comment
" ...  They don't sit the ball on a plane parallel to the desk surface.  ...  "
comment
" ...  I bought it intending to just use it for travel, but now use it as my primary mouse.  ...  "
Accuracy
 5
trackball, accuracy
+100%
comment
" ...  It is super accurate and adjustable so you can set your dpi on the go and still have the accuracy that you cannot get with a conventional mouse.  ...  "
comment
" ...  I did game with it once, and while I was fairly accurate, it didn't seem very sensitive.  ...  "
comment
" ...  The product name is accurate.  ...  "
comment
" ...  Trying to do small accurate adjustments from a standstill always causes the cursor to jump more than I want.  ...  "
Features
 4
like, work, red, programmable, mode
+100%
comment
" ...  I could not make “Gesture” features to work.  ...  "
comment
" ...  So although it looks like there are a lot of features.  ...  "
comment
" ...  Like the programmable features  ...  "
comment
" ...  First select "enable test mode" then next.  ...  "
Touch Sensitivity
 4
nice
+75%
-25%
comment
" ...  Being able to pop the ball out with your finger is a super nice touch.  ...  "
comment
" ...  Materials are nice to touch.  ...  "
comment
" ...  Gestures Functions are also really cool, the sky is the limit with that  ...  "
USB
 4
remove, receiver, daily, computer, back
+25%
-75%
comment
" ...  Changed to another USB port.  ...  "
comment
" ...  Mine would stop working almost daily to where I would have to reach around the back of my computer, and remove and reinsert the usb plug.  ...  "
User Manual
 3
japanese, english, online, find, section
+33%
-67%
comment
" ...  The manual was entirely in Japanese. ... I did finally find an online manual but it was no help.  ...  "
Capacity
 3
range
+100%
comment
" ...  -Range: 10’ on metal desk, 30’ unobstructed.  ...  "
comment
" ...  I will be buying another for my house .  ...  "
Cables
 3
usb, cord, cable, work, plug
+33%
-67%
comment
" ...  At least with my extension cable I can easily unplug and replug in, however, it takes about 5 times until it's found again by the PC and begins to work.  ...  "
comment
" ...  Only way i could get it to work was with the optional USB cable.  ...  "
Product As Described
 3
pictures
+100%
comment
" ...  Take a look at the picture attached.  ...  "
comment
" ...  As you can see in the first image I shared, this thing is very big.  ...  "
Network
 3
drops, connection, seems, range, one
+33%
-67%
comment
" ...  Just as others noted, disconnects.  ...  "
comment
" ...  My only negative is, sometimes is drops the connection. ... Occasionally drops connection.  ...  "

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Specifications

Connectivity
Bluetooth:  Yes 
Fingerprint:  Yes 
Yes
BLUETOOTH
Yes
FINGERPRINT