Specifications:
-Resolution: 800 – 1200 – 1600 dpi
-Connection: 2.4GHz Wireless USB/ Bluetooth
-Quantity of buttons: 4
-Transmission distance: 10 meters
-Size: W113 x L57 x H25 mm
-Weight: 68g +/- 5g
-Voltage: DC 3.7V +/- 5%
-Current: 20mA
-Power supply: built-in rechargeable battery