Bornd 1000/2000 DPI Bluetooth 3.0 Optical Wireless Mouse, White (C100 WHITE) Buttons: 3 (left, right, scroll) Operation Range: 30-Feet, 360 degrees Resolutions: 1000 / 2000 DPI Operating Voltage: 3.7V Operating Current: 5mA Compatibility: Windows 98/ 2000/ XP/ ME/ VISTA/ Win7/ Mac OS