ELECOM EX-G Left Handed Trackball Mouse, 2.4 GHz USB Wireless, Ergonomic, Thumb Control, Tracking Roller Ball, 6 Programmable Buttons, Tilt Scroll

I've been using Trackball mouses for more than 20 years, but on these last months I can't endure long sessions of PC usage or gaming anymore. Mi right hand and wrist end up stiff and hurting. That's why, even though I'm right handed, I decided to learn to use a Left handed trackball, so that I can alternate between both hands.I didn't look too much into the perks and features of this model. It just seemed nice and affordable (even with the addition of shipping costs to Spain). But boy was I in for some pleasant surprises.I was still using the old version of the Logitech M570 (standard left and right buttons, wheel + wheel button configuration plus 2 additional customizable buttons). Now, I don't know about the recent M570 v2, but this ELECOM, compared to the old M570 wins by a landslide, let me tell you...First of all, when you rest your hand on the mouse you get a feeling as if the shape of the hand was kind of sculpted into the mouse, as if you had slightly pressed your fingers on some clay and then it had dried.In addition to the usual left and right buttons (which you normally would press with your index and middle finger), there's one extra for your ring finger.It has also two additional buttons for the index finger (similar to those of my Logitech), and -the quirkiest- the wheel not only works as an up and down scroll and button, but has also a right and left tilting movement which function as TWO MORE buttons. The neat part is you can assign any key or keyboard functions (and even most combinations of keys except Ctrl+Alt+Del for safety reasons, or so it says) to each of the buttons.The configuration software is NOT provided on the eco-friendly sober packaging (nice touch). You just get the mouse, the small USB receiver (which you can attach to the back of the mouse for storage or transportation), the needed battery (another nice touch) and a brief quick start guide in japanese, but with enough annotations in English to succesfully start using the thing.Speakinf of the customizable buttons, I find REALLY useful to have CTRL+C and CTRL+V (Copy and Paste) on the left and right wheel tilt buttons. Also the SPACEBAR and ESC on the index extra buttons and right now I have "maximize window" on my ring finger one, which suits my current needs for one of my most used programs.By the range of functions assignable to the buttons, it's clear that this mouse is meant to be versatile not only as a gaming mouse but mostly as an office worker mouse. It must be great for Excel users, and maybe photo or video editors too. Also for enviroments using more than one screen.It has another function called "flying scrolling", in which you can use your mouse wheel not for manually scrolling but to start and stop scrolling. Not useful for me at the moment, but I understand it can save a lot of manual flicking in many scenarios.Since I'm not a hardcore gamer (mostly point and click adventures and puzzl-like games) I cannot say for sure how this mouse behaves as a gaming device, but I reckon that must be good. It has a DPI selector, which is also new for me, so that you can choose between covering about 60% of the screen (horizontally) with one movement of the thumb rolling the ball, or covering the whole screen in less than the full range of the ball. I'm sure that must be handy when trying to shoot zombies or whatever kids are doing nowadaysOn the bad side (but not really): Call me old schooler, but I miss the days of having a phisical copy of the drivers and software included with the periferials. That's the only "con", if any, that I've found on this mouse so far.But all in all I find it a great product, I am very satisfied with the purchase and I think I'll end up buying the right handed version also. I'm finding that controlling this mouse with my left hand is a lot easier than I anticipated. But I wonder if I'll be able to edit video with 2 mouses at once with SO MANY ASSIGNED BUTTONS (lol). Maybe I'm on to something here, who knows...You don't have any way to confirm this, but I assure you that ELECOM has not paid me anything for this review, I kid you know. I REPEAT: ELECOM didn't sponsor this review, nor did they promise me to send me the right handed one... yet. (But surely wouldn't hurt, either, wink, wink).

I'm a longtime Logitech M570 user. After hurting my right shoulder it got increasingly painful to use my right hand on my trackball all day long. Just the position at my desk would strain my bicep as it compensated for the shoulder. I decided I'd take a stab at using a trackball in my left hand. I initially ordered one of the Kensington universal trackballs where you use your fingers instead of thumb. I found I could use my computer but really missed the layout of the M570. I came across this Elecom which is nearly identical to the M570 but in a left hand configuration. I was very surprised at how quickly I switched from the right hand to the left hand and after a week I was just as fast with it in my left hand. My arm/shoulder got progressively better but I decided to just keep using the left hand track ball anyway.One thing I never anticipated is that I actually became more efficient using a left hand track ball because I can keep my right hand on my 10-key (calculator or number pad) and keep my left hand on the track ball and quickly enter and move numbers around documents incredibly fast. I'm even considering adding the right hand version and having two. I'd then keep the left hand one at the setting I like for normal use and maybe setup the right side for precision use. Still deciding on that though.A couple more notes: This trackball has an extra button under the ring finger. Their utility to remap it works very well though I haven't decided yet what to do with it. Another interesting fact is that it's mapped truly mirrored to the right hand version. And by that I mean the pointer finger on the left hand trackball is the left click so you won't have to reassign buttons in the control panel. This also means you can keep a right hand mouse or track ball and it's buttons will remain correctly mapped. The only downside to this trackball is that the actual movement of the ball is just not quite as smooth sometimes. I think after some use it'll break-in more and that may go away. Overall it's not enough of a degradation to dock an entire star.

Where do I begin?1. This mouse is exactly the mouse as advertised in terms of appearance, feel, and basic function. It works when you connect it. It has the functioning roller ball. You do not need to use your wrist. There are additional buttons that you can program. How? I have no clue. It doesn’t tell you but I’m assuming maybe the instruction guide was not ever put in the box and maybe you’ll get a pamphlet or something. But that leads me to my next notation.2. The buttons are there. Two additional small buttons on the main clicker (pointer finger) There is an additional button on the left side where the ring finger is and it can be difficult not to accidentally click that when trying to click the button under the middle finger. I can imagine when programmed this mouse is unbelievably efficient and cool. (I just can’t figure it out) The buttons are silent. They have a nice depth to them. They don’t require a ton of pressure so that’s nice for achy joints.3. On that note, this may one of the only legitimate, ergonomically correct, rollerball computer mouse on the market for left-handed individuals. I quite literally spent 2 weeks hyper fixating on which mouse to buy. This was basically one of the only budget friendly options out there. I went to physical stores and saw ZERO left-handed computer accessories. So for the sake of convenience and inclusivity this HAS to get an additional star. This does exactly what it says it does and it provides quite a bit of relief. In terms of ergonomics- the shape is round, and large enough to support your entire hand resting on it (Including some wrist). The feel is soft. The rollerball and additional button functions are extremely helpful for those of us who feel like our joints are disintegrating upon contact. However, I wish there was a way to switch between some wrist movement and none because on days where my knuckles and fingers are aching it’s hard to use the mouse because all of it relies on the buttons.So after all that- why four stars?4. The rollerball is so extremely difficult for me to figure out. It is so sensitive and reminds me of the struggle of having to ping something in a video game with a controller. PC should not feel that way. The rollerball is loose, basically slings around. If you move the mouse at all the ball rolls by itself. It is very hard just to get the cursor to settle on the X and I normally fly through six rotating screens at a time & four native screens without any issue. It may be me. It may be my patience. But this mouse takes some getting used to. The accuracy of the rollerball pinpointing is just very off sometimes and for me that makes it too inefficient. I’d rather deal with a little pain and stay on the grind consistently. Hence the absence of the fifth star.In conclusion- 8/10

***Update*** Still love the mouse. Left button still sticks a lil bit. (still not a problem just yet). Just changed from the original battery after about 6+ months of use. I only use it about 4-5 hours a day mostly every day and I normally turn it off after I'm done.Trading up from a Logitech trackball because I wanted a few more buttons and a scroll wheel for WOW. It’s taking a bit to get used to moving with my thumb instead of my fingers but I’m getting used to it. Love the scroll wheel and it tilts from side to side but the game doesn’t support that yet. The ball is a bit smaller but not too bad. I’m not as precise with the thumb movements but I can live with it. It didn’t come with directions but I found the website to download the drivers. And it works as intended. I find that I sometimes push the second and third finger buttons inadvertently just by resting my hand on it but I’m trying out different angles and holding my arm higher or lower than the mouse.Haven’t had to change the batteries yet as I’ve only had it for about two weeks. As you can see from the pics it has a high/low/power switch on the bottom. Not sure what that’s for. It also has a high/low switch on the top and I believe that’s for the dpi settings. Makes the mouse cursor move a bit more fluid across the screen it seems. All in all I like the mouse and I would buy it again.

This product was/is "interesting". Unfortunately, it is interesting at the expense of being useful. For years (decades) I used a Logitech Trackball, which finally died. I decided to surrender in Logitech's war on left-handers and search out some other manufacturer's trackball made for left-handed users. There aren't many choices, but this Elecon product looked good.As the saying goes, looks may be decieving... I purchased and have used this product for a couple of months. I am not a gamer (I could be, and would love to be, but can't afford the drain on my time); consequently, I used the product in my work. After a short while, I realized the first consistent result of using this product; it slowly, but surely, increased my stress level through the day. No matter how I adjusted it, no matter how I tried variations on interfacing it, it almost worked well with my Windows 11 OS. "Almost" is the operative word here.It seems at times (all times ?) that cursor has a mind of its own - the mind of an idiot automaton. It would hesitate to move, then overshot the target, it would make up for that by undershooting - or going sideways, or... or... It didn't matter if it was set for the high or low resolution DPI, it didn't seem to like either setting. My work involves a lot of graphical work and I kinda need the cursor to go where I want it to. "Quoth the Raven, "Nevermore..."Getting into a daily war of wills with my trackball got old in a hurry.I soon found some of these problems were due to the fact that this machine sucks batteries dry faster than any other computer accessory I have ever had. I generally use Panasonic Oneloop Pro batteries. These are good batteries, both long-lasting and holding of a large charge. They'd last about a day and a half. Batteries from other manufacturers would last correspondingly less time. Putting a freshly recharged battery in the device would provide an hour, maybe two, of good use. Then it would die a longer, more tortured death than the hammiest actor could provide in a an old "grade b" western movie.Awarding these Oscars got old in a hurry. I then entered into my new career of trying to find the "sweet spot" in the various combinations of settings. Hint, if you want to do this on your own time, there is no "sweet spot".In other aspects, the design of the device seems amost good.The software used to assign functions to the various moving controls seems to work most of the time, but the assignments tend to fade - or better - migrate, after about the 52nd needed battery change. The position of the some of the controls leaves a lot to be desired, though. The two "buttons" at the front right need some sort of spacing between them, it is far too easy to press both at once. Many of the other movable controls are pretty difficult to use - they have almost no discernible motion (in my "ham-handed" grip, anyway) so it becomes difficult to consistently use them and, more importantly, to build up the muscle memory for them to become useful.The track ball seems to suck up and accumulate dust and detritus into its socket cavity better than the best vacuum cleaner. Fortunately, it is easy to remove the ball and clean its socket. Manufacturing quality appears fairly good, but hey, I really haven't had it long enough for many possible QA/QC issues to show up.Anyway, today was the last straw... I continue my quest for a good left handed trackball device. I wish I could say "This" was the product. It is well designed, I think, to remove the customer's cash from their account. To function as an efficient trackball device, not so much.

I'm a true lefty, and I'd been wanting a left-handed trackball for years. Symmetrical trackballs often require hand movement rather than thumb movement and are uncomfortable for me. Ergonomic left-handed mice also require entire arm movement. I want something where I can navigate with my thumb and click with my other fingers.There are other great trackballs out there, but only Elecom makes a left-handed version. This model fits my hand well, is wireless, and after a break-in period has become my mouse of choice.- Initially, the ball movement was jerky. It was very difficult to adjust just one pixel on my screen. I've been using it a couple weeks now, and the action has smoothed out to the point that it's no longer a concern. I didn't have to replace the ball or anything.- I have the sensitivity set to High. This also seems to help those precision movements.- The instructions are completely in Japanese, but the unit is plug-and-play. Who needs instructions?- Can't speak to battery life yet. Runs on a single AA, no signs of weakening after 3 weeks of regular use.Again, make sure you give it a couple weeks to smooth out. It looks nice, runs well, and I'm a satisfied customer.

I own an Elecom Huge for my right handed pointer on my desk top, it’s fantastic in comparison. My Left handed desktop pointer is a Kensington Pro, which is pretty decent. To mix things up and avoid claw hand issues, I swap in a Penguin mouse from time to time. Due to RSI issues I use a variety of ergonomic pointers to minimize repetitive strain.Bought this for on location laptop use as it is the only small format left handed trackball that seems to be available. Unfortunately, it’s cheap, jumpy, and clunky. The switch from low dpi to high dpi is jenky and awkward, and I don’t believe that “high” dpi is all that high.The cursor is very jumpy with this trackball which is further exacerbated by some stickiness/looseness issues with the ball housing. This makes placing your cursor in the exact location frustratingly difficult. In contrast, the movement of the Elecom Huge is very smooth and precise cursor placement is easy.The ball sits a little loose in the housing and the “roller” placement is odd. There are six knobs arranged in a concentric inverted triangle arrangement. Some of the stickiness is probably due to the three inner knobs are made of plastic instead of the red synthetic gemstone that actually works very well on the Huge. The real engineering issue is that the roller placement of the outer triangle allows enough slack that the ball has a tendency to initially move forward or up when starting to roll in the respective directions.The button switches are decent - nothing like you find on a quality right handed mouse, but I’ve basically given up hope of finding excellent switches or scroll wheels on “ergonomic” pointing devices. This scroll wheel is very delineated and a little too far back toward the palm to allow for comfortable scrolling for my medium-small hands. On the plus side the center button/scroll wheel offers side to side scrolling by pushing it left or right which is great for navigating spreadsheets and schematics/drawings.I suspect that the EX-G Pro addresses many of these issues, but since it’s not available in a left handed model I won’t be purchasing one.Finally, Elecom’s cases seem larger than they need to be. This may be allow extra space to store spare batteries or some such silliness.Wishlist:1. Smoother roller action2. More precise movement3. Fly wheel with “smart” logarithmic acceleration4. Ergonomic tilt to the device for more natural arm placement5. Firmware stored on device rather than driver software - love this feature on my keyboards!6. Options for larger hands!7. Option for knuckle activated switches8. Larger or better placed forward and back buttons. For example, if the back button was located at the middle knuckle position I would be able to press it more easily and without having to move my index finger.9. Scroll wheel located further forward to minimize the amount of claw shape I have to make to scroll and slow forward knuckle clicking.10. Rechargeable internal battery!!!

First up, I've spend most of my career at a keyboard of one sort or another, this has given me a deep appreciation for ergonomic designs to prevent RSI or carpel tunnel problems.Second, I'm left-handed, I switched from left-side mouse to left side trackballs a long time ago, relying mostly on Logitech's ambidextrous models.Third, I'm a gamer, and was never really happy with the Logitech's lack of a mousewheel and limited number of buttons.I tried a lot of other trackballs, all ambidextrous, all flawed or awkward to use.I finally decided to overcome my dislike for things that consume batteries, and try this ELECOM M-XT4DRBK.I'm glad that I did.First thing, it's a light but sturdy sculpted object, it fits perfectly into my left hand, with generous rubber pads on the bottom to keep it from shifting no matter how fast the zombie hordes spawn around me. It came well packed with a AA battery, and it's little USB receiver hiding in a storage well on the underside of the trackball (this feature makes it a winner for keeping the dongle save and together with the trackball until it's time to use it.)It starts off as a 'generic' sort of mouse until you download the setup software, which also lets you set up custom button profiles for different programs. Lots of buttons, and a wheel that also tilts left and right, and pushes straight down too.Battery life is pretty good, I've been using it for 2 weeks now on low power setting,Action is smooth and reliable, its a comfortable, versatile tool, the ball moves smoothly, and is easily popped out for cleaning if you poke it out with a pencil or something, it won't fall out accidentally, also a good thing when traveling.I'm happy to have finally found the perfect trackball for left-handed gamers, or any other southpaw who needs the precision and ergonomics of a trackball without losing features like extra buttons and a mousewheel.It is rare for someone to make this level of product for us lefties, so I strongly encourage you to give it a try!

Ottimo x i mancini

まずコスパがいい。5000円未満の製品としては最も完成度が高いと感じる専用アプリでボタン配置やショートカットを設定でき、アプリの使用感も良い持ち運びにも便利な大きさで、電池持ちも良く、トラックボールもなめらかであるこの製品を買っておけば失敗しないと思う

Sidewise scrolling is not good. Which is main function we are buying this mouse for.

First time I've worked with this type of static trackball mouse and it's great. Your hand stay still and you just move your thumb with the trackball, which I find makes it more accurate than the typical mouse where you move your whole hand.I thought there was going to be a learning curve of a few days but no, it's a pretty quick, same-day adaptation. I find that the wheel and back and forward buttons are easier to use and more functional than the Apple mouse. You don't get mixed up, they are clearly and intuitively separated and it flows.I've had it for a month, I didn't download the software that I understand could add some functionality but I may do so later.The unsual thing is that I'm using it with the USB adaptor in my M2 Mac Mini but it's not bluetooth nor wireless, so it must be another radio frequency that doesn't show up on the computer. Cool, in a way, so it doesn't load bluetooth or wireless channels.I really like it, a definite must-try for lefties.

Fast delivery to Singapore from USA. It took only 1 week at this covid-19 period. The mouse is easy to use yet the trackball is not as smooth as how i feel with a logitech one. However, you won't get a left-handed mouse from logitech.