ELECOM EX-G Trackball Mouse, 2.4GHz USB Wireless, Ergonomic Design, Thumb Control, Smooth Roller Ball, Optical Tracking, 6 Programmable Buttons, Tilt Scroll, Computer Mice for Laptop PC, Windows & Mac

كل شي جميل وبتصميم انيق واستخدمه سلس ، حيث استخدمت جميع اجهاز لوجتك M النوعين وهم ممتازين جدا

BALL NOT SMOOTH AS EXPECTED

オフィスでの長時間のデスクワーク時の手首の腱鞘炎対策（負担軽減）を目的に、右手用Lサイズのワイヤレスモデルを注文し、メインのPC環境にマイクロレシーバを常時接続して毎日愛用しています。 最大のメリットは、手の骨格・筋肉の窪みに着目したという「握りの極み」エルゴノミックデザインが生み出す抜群ののせ心地です。本体を動かさずに親指だけで直径約34mmの黒玉を転がすため、狭いデスクでも省スペースで正確なポインタ追従性を発揮してくれます。左右ボタンと薬指用の減速ボタンには1000万回高耐久のOMRON社製スイッチが使われており、カチカチと心地よいクリック感があります。さらに、ホイールを傾けるだけで左右スクロールができる「チルトホイール（横スクロール機能）」を搭載しているため、Excelの横に長いスプレッドシートやWebページの閲覧効率が劇的に向上しました。裏面の穴からボールを簡単に取り外せる設計で、直径2.5mmの大型人工ルビー支持球に溜まる手あか等のゴミ掃除（メンテナンス）がしやすい点も非常に実用的です。 2段階の速度変更スイッチや、無料の専用ソフトによるボタンカスタマイズ、長持ちするバッテリー性能も魅力です。慣れには数日かかりますが、手首の疲れが軽減されるおすすめの製品です。

Viniendo de dos Logitech M570 seguidos, con sus habituales fallos en los botones, el cambio ha sido muy facil, Es ligerisimamente mas corto que el M570 pero muy comodo y manejable. Practicamente no hay diferencia en la postura de la mano respecto al Logitech. Muy utiles los botones adicionales. La precision es mejorable. En ese sentido daria un 10 al M570 y un 8 al Elecom P.d.: añado que le he puesto la bola del Logitech y la precision es ahora absoluta. Parece que el dibujo de la trama de la bola Logitech funciona mejor

Bought this as the switches in my 1st generation Elecom wireless trackball (M-XT1DRBK) started playing up. It was far easier to buy a new mouse, and I'm damn glad I did. The external design hasn't changed from Gen1 - they physically look identical - save for the forward and back buttons, which are now of a lower profile. This is a good thing - it was a fantastic thing to hold in the first place. Popping the trackball out reveals the artificial ruby bearings, which are much larger than the ceramic ones previously used. Having only used it for a day I can say that the movement is more positive, albeit a bit scratchier. A bit of PTFE on the bearings might fix that. No comment on maintenance intervals yet as I haven't had it for long enough - Gen1 lasted about a week or so before needing cleaning so I expect this to last longer. The two biggest changes in terms of feel are the switches for left/right click, and the scroll wheel - these are the reasons I'm glad I upgraded. The switches weight are perfect, being a little on the heavy side, with a loud and tactile engagement. Blows Gen1 out of the water in this aspect, even when they did work properly. The second change - the scroll wheel - is minor but makes a huge difference. Since the first day I got the Gen1 trackball the scroll wheel always drove me up the wall, as the scroll wheel had a lot of play; it would move up and down whilst scrolling, and when clicking it would move forwards, and therefore never delivered consistent performance or positive feedback. The new scroll wheel is much better though, despite the wheel itself not changing. Overall this is a great option for a thumb trackball, and is very reasonably priced for what you get. Better than previous generations AND the M570. The Logitech MX Ergo would have to deliver unbelievable performance to top this.

Finally, a trackball mouse that lets me use Autodesk's Fusion and my PC's functions the way I want it, without using layers or macro controls/apps. All of my multi-button mice have been set up in a way that uses the side buttons for volume up and down, and the middle button for Back function. This is what I prefer for normal browsing and file folder navigation purposes. But in Fusion, the orbit and pan view functions cannot be programmed to any button or key that you like, there are only a few settings to choose from. This mouse has a 6th button on the right, which I can set to middle button click, so Fusion recognizes it as Pan view. So I can now have this function without reassigning my middle mouse button, or create a different profile/layer in software that more often than not, gets ignored by Fusion, making me have to restart the program constantly. I love having this convenience! The mouse is packaged very well. I love the simple cardbox box that is devoid of garish graphics or text that proclaims this and that. Only thing I wish is that the inner packaging securing the mouse can be changed to cardboard instead of plastic. The mouse itself is built well, about the same as my Logitech Ergo M575S trackball, but this Elecom costs about half the price of that. The trackball is glossy and smooth, and very responsive. I have no trouble with my thumb moving it around, no slipping. I will buy another one just to have a backup, no regrets with this mouse, especially at this price point.

I've been using this trackball for a while now. I absolutely love it. It's nice: heavy and sturdy. Beautiful really! Just what I expected from Japanese technology.