ELECOM DEFT Trackball Mouse, Index Finger, 2.4GHz Wireless

Excellent office trackball. - It's easy to use - It has plenty of buttons for customisation and software to remap them - Small enough to not get in the way but still comfortable - Accurate with very little lift-off (better than the huge trackball in this aspect) - Very useful scroll wheel. Trackballs without a scroll wheel are annoying. - Lightweight and easy to carry - Wireless, so no cables to deal with. - Sufficiently sturdy plastics and no sticky rubber. - Good price for a trackball. The only downsides are - The back and forward buttons don't work on a Mac - The polling rate isn't high enough for gaming (you get aliasing problems).

After suffering a scaphoid injury 10 years ago I have recurring wrist pain around my thumb area which can get worse or better depending on how I take care of my wrist. I work on a PC for 8 hours a day, and was starting to feel the pain ramping up. I could feel the movement of a normal mouse wasn't helping the issue so started reading into alternatives. A lot of trackball mice these days use the thumb for the trackball, which wasn't an option for me and I eventually settled on this one. It took quite a lot of getting used to to be able to use this accurately and efficiently, I have had this mouse for just short of a year now and using it is second nature. At first the ball doesn't really roll smoothly in it's cup, that improves with time. DO NOT use alcohol or any solvent to clean the ball/cup, the oil from your skin actually helps the ball roll smoothly so don't remove this if it can be helped, just wipe any dust away with a cloth. I feel I've had it long enough to confidently comment on it, the quality is brilliant, this thing feels like it'll still be going strong in 10 years easily. There is some Elecom software you can use with this mouse that lets you customise it to the nth degree. I have my 3 custom buttons at the top as cut, copy and paste, my left thumb buttons are forward and back. There are endless options for customising this and the software is great once you get it into English mode as it starts in Japanese. It seems to go through batteries quite quickly (needs changing every month) but I do have to have it on the higher power mode because of the distance from my PC. It only takes 1x AA battery though so it's no hardship. My one gripe and this is only really a personal problem (hence no star reduction) is that I would've preferred a trackball with the scroll wheel around the trackball as it is on some other mice. Having it thumb operated can sometimes cause me some pain, but I'll generally avoid scrolling this way if it's anything over a couple of pages.

The mouse is decent as expected, I have used the Marble before so I am used to fingercontrolled track ball mice. I must say as read in other reviews the mouse is a bit too small for my taste, I do have large hands. I have used this for a few weeks and it is very good for normal use aka web surfing, text editing. I do use this for some light gaming and it struggles there, particularly due to the smaller ball making control a bit more difficult. I achieve better control using more fingers but It's not designed for this use (the ring and pinky indentures become obselete because you then use your ring finger for the right mouse button). I would have liked to see this buton where the ring finger indenture is. I love the extra buttons (why i made the switch from the marble). In conclusion a good mouse for general purpose but falls short for gaming due to button placement and size.

The most important part of a trackball is how smooth it is and this just isn’t, there’s lots and lots of stickion, the ball just can’t make very fine movements at all. Aside from that pretty big issue it’s good, very comfortable for my small hands and doesn’t feel overly cheap and nasty. The switches aren’t anything special mind, just standard switches you’d get in a basic office mouse but they’re not bad and work well. I will say the right click button is quite narrow, I don’t mind it but some might. Overall nice and comfortable but not very smooth a ball at all

AN ELEGANT, UNDERSTATED JAPANESE WARRIOR! DESIGN AND FUNCTIONALITY. • This trackball is absolutely excellent. • It is well built, although it is made out of plastic, the trackball feels robust and compact, offering a plenty of sensibility and feedback when navigating the internet of working on applications. • The design is perfect, its looks is the perfect blend between high tech and professional devise; it has an underlying sense of Japanese wisdom and efficiency. • Its matt black colour, is understated, never looks dirty nor attracts dust • It is very intuitive, all its buttons are well located and fitted. They need to be pressed hard in order to operate then, which means they are long lasting. • The track ball has the perfect size (although it looks small at first). I soon realised the ball has the perfect size as it fits perfectly well with the buttons located in its left and right hand side. Three fingers can work in complete harmony. • Functionality!!!! Every button is programmable, with at 46 different functions plus gestures; this is what makes this devise so special. • The wheel’s performance is like a plane control, smooth and precise. • Improvements: It needs a protecting bag/box to protects its buttons The back of the trackball needs more high in order to allowed the hand to be fully supported on the devise.

I bought this mouse after struggling with wrist pain from using a traditional mouse for long periods. I’d also tried a thumb-controlled trackball, but that caused pain in my thumb. This one, which uses your index finger to control the ball, has been a total game-changer. It connects via USB receiver only (no Bluetooth), but setup was quick and completely hassle-free. The trackball is smooth, responsive, and needs just a light touch to scroll and move. I’ve used it for hours at a time, both for work and long Sims sessions, and it’s been completely pain-free. No wrist aches, no finger strain. Just smooth, comfortable use. I’ve got medium-sized hands and find the size perfect, I can easily reach all the buttons. It’s ergonomic, solidly built, and really easy to get used to. There’s even a handy little slot underneath to store the USB receiver, which is great if you’re carrying it around. Overall, if you’re looking for a more ergonomic mouse and thumb trackballs didn’t work for you, this one is absolutely worth trying. It’s comfortable, works brilliantly, and has made a big difference for me.

My wrist began ho hurt after repeated use of a standard mouse and found this one helps and fits my small hands fine. The ball has a good interface and is smooth. Better than a previous trackball mouse from Kensington.

Bought this while experimenting with using track ball mice - good place to start but didn't end up being my thing - good quality build

Excelente producto. Muy cómodo para trabajo de oficina.

Had it a few years now, still going strong. Thumbwheel is a bit flakey and I never figured out those auxiliary buttons, but It get's the job done. Could be a bit bigger for my meaty gaijin hand, but close enough. The rubber feet fell of after a month, but they always do. Bluetooth might have been nice. I expect several years more out of this one, and when I wears out I sure hope I can get another!

Bon produit seul b mol un peu petit pour mes grosses mains

Bin sehr überrascht von dieser Trackball-Maus hätte sie nicht so gut eingeschätzt! Habe ein Billig China Artikel erwartet aber nein das ist nicht der Fall steht den Großen Marken in keinem Fall nach. Nach Installation der Software/Treiber funktioniert sie einwandfrei durch die Software kann die Maus frei Programmiert werden ist aber nur in Englisch verfügbar nicht in Deutsch! Die Verarbeitung ist Top sehr Hochwertig! Bluetooth Verbindung gibt‘s bei diesem Modell nicht!

Mouse veramente interessante e comodo da usare