Best Mouse Trackballs

Used diameter 2.5mm big Artificial ruby as support ball; You can feel new type left hand operational Wireless trackball mouse with improved smooth tracking by new function and certain basic performance. The gaming grade high-performance optical system sensor provides outstanding tracking performance. Diameter 2.5mm artificial ruby large support balls reduce maintenance frequency. ■Interface：USB ■Connector type：USB(A)male ■Supported devices：Windows PC, Macintosh equipped with USB Interface ■Supported OS：Windows10, Windows RT8.1, Windows 8.1, Windows 7, Windows Vista, Macintosh OS X 10.10 ※Update to latest version of each OS and installation of service pack may be necessary. Horizontal Scroll is not available at Windows 8.1RT ■Resolution：750/1500 counts Reading method：Optical sensor method ■Number of buttons : 6 ※Wheel button included ■Number of wheels : 1 (vertical/horizontal) ■Communication method：GFSK method Radio frequency：2.4GHz band ■Radio wave outreach：When used on magnetic material (including desk with iron):3m when used on non-magnetic material:3m■Receiver storing：◯ ■Continuous operating：About　125 hours in low energy mode/About 76 hours in high speed mode Continuous standby time：About　694 days in low energy mode/About 694 days in high speed mod Estimated battery life：About　273 days in low energy mode/About 176 days in high speed mode Power supply (the body)：AA alkaline dry cell, AA manganese dry cell, either one of the AA nickel-metal hydride rechargeable. ■Power supply voltage：1.5V ■Color：Black Dimensions (Mouse)：Width 94.7* depth 124.4* 47.9mm in height ■Dimensions classification：Large size ■Weight (Mouse)：About 128g ※We do not include battery ■Dimensions (receiver)：Width 13.1* depth 18.2* 5.0mm in height ■Weight (receiver)：About 2g ■Accessories：AA alkaline dry cell *1 for operation check, User manual *1(Japanese).