Reduce palm fatigue when use for long time.
2.4 GHZ Wireless Technology
1000 -1200-1600 CPI Optical Sensor
6 Buttons Design , 10M Wireless Range
Size: 11.8cm/4.6in*7.5cm/3in*5.8cm/2.2in
Power Saving Up to 16 Months Battery Life,
AA Battery, Battery Included in the Package
USB Nano Receiver