エレコム(ELECOM) ELECOM EX-G Wired Trackball Mouse, Ergonomic Thumb Control, Smooth Tracking Roller Ball, 5 Programmable Buttons, Tilt Scroll, Computer Mice for PC Mac

Trackball mouse with 5-Button Function Designed with a high-performance gaming optics system sensor and lens This trackball mouse bases on ergonomics, effectively reducing user’s wrist strain and muscle pain The ball is held in place by the ball bearings, but can easily be popped out of the device, by pushing it through the hole in the bottom and it can be easily cleaned System requirements: Windows Vista, Windows 7, Windows 8. 1, Windows RT8. 1, Windows 10 (Horizontal scrolling function is not working in Windows RT8. 1), macOS 10. 10 Resolution DPI: 750/1500 count (switchable) Size & Weight: Size: W3. 7"(94. 7mm) X L4. 9"(124. 4mm) X H1. 9"(47. 7mm), Weight: 5. 3oz(without battery) Connectivity: wired English Manual & Mouse Assistant Software can be download for FREE. Listed asTechnical Specification：User Manual [PDF ].