Mouse - Universal - 2.4GHz 500/1000dpi Wireless Mouse and Pen with Mini USB Receiver, Transmission Distance: 10m (Gray) Highlights Universal 2.4GHz 500/1000dpi Wireless Mouse and Pen with Mini USB Receiver, Transmission Distance: 10m (Gray) 2.4GHz 500/1000DPI Wireless Pen Mouse with Mini USB Receiver, Transmission Distance: 10m (Gray) Product is shipped based on color or size of the main image of the product page. 1) 2.4GHz high speed 2) Low pressure alarm 3) Optical precision 4) Comfortable sentence 5) Operating frequency: 2.420GHz-2.483GHz 6) Transmission distance: 10m, 360 degree 7) Adjustable resolution: 500/1000 DPI 8) Tracing System: Optical 9) Working Current: 15MA 10) Power Supply: 1x 1.5V AAA Battery 11) System Requirements: Windows 2000 / XP / Vista / 7 / Android / Linux / Mac OS 12) Size: 140 x 23 x 16mm