ELECOM HUGE Trackball Mouse, 2.4GHz Wireless, Finger Control, 8-Button Function, Precision Optical Gaming Sensor, Palm Rest Attached, Smooth Red Ball, Windows11, macOS (M-HT1DRBK)

Trackball mouse with 8-Button FunctionDesigned with a high-performance gaming optics system sensor and lensThis trackball mouse bases on ergonomics, effectively reducing user’s wrist strain and muscle painThe 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 cleanedSystem requirements: Windows XP, Windows 7, Windows 8.1, Windows RT8.1, Windows 10 or later, macOS 10.12 or laterResolution DPI: 500/1000/1500 count (switchable)Size & Weight: Size: W4.5(114.7mm) X L7.2(181.9mm) X H2.3(57.2mm), Weight: 9.2oz(without battery)Connectivity: wirelessBattery requirement: 2 X AA battery(Included)- Battery Remaining Light Lamp equippedEnglish Manual & Mouse Assistant Software can be download for FREE.Listed as Technical Specification：User Manual PDF : '