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

Good trackball mouse, like the 3rd button and the software allowing custom setup, really helps with my engineering work. The buttons are a little on the louder side when clicking compared to other devices. Good value, comfortable to use and surprisingly quick to adjust to using it

This trackball has changed how I use my computer. it is excellent - comfortable, accurate, a joy to use. I'm not a left-hander but use a trackpad with my right in a dual-monitor set up. Wish I'd discovered this years before. The ball works smoothly; super-comfortable in the hand. So good, I immediately bought another.

This is a great product! Works very well on Chrome 134. Only the very left hand button doesn't do anything.

Great for a wrist injury as hand and wrist dont have to move, programable buttons and a very nice fit to my hand - I am six ft tall for comparison. Takes a day or so to get used to the trackball if you are used to using a conventional mouse but after that you can get some very accurate movements.There is only one negative, the trackball invariable before stiff to move in a certain place. I believe this is because the ball is not perfectly spherical, it is only a minor annoyance as I just spin the ball quickly to get rid of it. I think this will lessen as it wears in slightly. MOverall, I am very please with my purchase!

I need a left handed trackball due to an injury to my right wrist. I am normally right handed. One of the few left handed trackballs available, this became almost a default choice. One initial problem was a slight "stickiness" when you first try to scroll with the ball. That made accuracy difficult. A few hours of use has smoothed that out and the unit now functions very well, with a similar degree of accuracy to the Logitech trackballs I normally use. I am using the trackball with Linux (Debian 12) which is not noted as being supported but the OS had no trouble recognising and enabling the device.

In short: This is NOT worth £45.99I developed a repetitive strain injury in my right (dominant) arm from mouse use and switched to a left-handed vertical mouse. That was fine for a while, but I started to develop an RSI in the left arm, too. So decided to get two trackball mice, as I have become fairly adept at using both hands, so I could alternate and reduce fatigue. I bought a right-handed Logitech M570 and it's an absolute ergonomic dream. Annoyingly, Logitech does not do the same model in left-handed, so I resorted to this model, which was graded nearly as good but in reality, falls short in comfort and durability.Before the scroll wheel broke, it was okay. Not as comfortable as the Logitech one, and for the price, looked and felt cheap. Also, it would sometimes disconnect itself so I'd have to pull out the receiver and reinsert it. It also seemed to need more cleaning than the Logitech one, which might be down to the roller ball cup not being as secure a fit.However long I've had it, it's had half as much use because I alternate between hands during the day. So in real terms, it lasted three months of active use.I wish I would have got Logitech Trackman Marble (the ambidextrous one, which I'll now have to go out and buy, and is much cheaper) and can't believe I paid £34.49 for this (as the price was). Waste of money.

The good. It’s a left-handed trackball. It fits nicely in the hand. The packaging is well thought out. It connects and works straight out of the box. I REALLY wanted to like this trackball mouse!The bad. I’ve come from Logitech trackballs, using both the humble 570 and then upgrading to the more ergo friendly MX. These are superb devices with reliable tracking. They work. I have my slight gripes with the MX ergo but that’s more that it lacks features compare to the other MX master line. However, this review isn’t about Logitech.So, if I’m so happy with the Logitech trackballs, why buy this Elecom version. Well, I damaged my right thumb. It needs to rest, but I need to work. I need to use my left hand. Logitech don’t make left-handed versions of almost any of their products. (Why?!!! - as a righty who’s also a lefty, I find this insulting!) Anyway, enter the Elecom. As I said, ultimately it’s a nice product. Main downside is that the ball does not track well. It sticks. It jerks. It makes me miss even window close buttons! There is simply no way I can use this for accurate editing. Perhaps mine is slightly faulty? Or perhaps I just need more accuracy than other users. Sadly I’m having to return it.Two stars for design and comfort. Lost the rest due to being essentially unusable.

Very much like using this trackball. I used to use a track ball many hundreds of years ago. I got it due to space limitations and gaming. So I tend to usit quite a bit in war thunder for controlling the tanks and ships. It did not take long, just a few seconds to setup and i would say 45 minutes to get uset to. I using this with my work laptop now as the space is quite limited for mouse movement. All in all I am impressed. THough its a bit annoying to pay more just because I am left handed, but then again, it will annoy my right handed friends as they will have to adjust or use a different mouse!