Bluetooth Wireless 3.0 Version, range upto 10 meter. 2400 CPI 5 Adjustment Levels (800/1200/1600/2000/2400)nNote: NOT compatible with Apple iPhone or iPad. Compatible with PC, Mac, and Android OS Tablet.nSlim, ambidextrous design. Easy to pair and easy to operate. 1 AA battery (NOT included) with 6-month extremely long battery lifenHigh-definition optical sensor, side-to-side scrollingnNo random movements or dropped connections. Quieter and Easier to clicknCompatible with PC, Mac, and Android OS Tablet. Note: NOT compatible with Apple iPhone or iPad.