Item Type: Wireless Mouse_x000D_ Material: ABS_x000D_ Wireless Transmission Distance: Approx. 10meters / 10.9yd_x000D_ Wireless Frequency: 2.4GHz_x000D_ Buttons: 6 Buttons (Scroll Wheel, Page Forward and Page Backward Button, Left and Right Mouse Button, DPI Adjustment Button)_x000D_ DPI: 800-1200-1600DPI_x000D_ Power: 2 AAA Batteries (Shipped Without Batteries)_x000D_ Mouse Type: Wireless Optical Mouse_x000D_ Interface: USB12.4GHz: Has 2.4GHz wireless data transmission, high anti interference performance, transmission distance of 10 meters. 23 Levels DPI Adjustable: 3 levels of DPI adjustable, 3 DPI (800, 1200, 1600) to freely change the mouse speed. 3Broad Compatibility: Using sophisticated production technology, the wireless mouse supports for Windows XP, for Windows Vista, for Windows 2000 Server, for OS X. 4Matte Texture: The wireless mouse has a matte texture, a slim, sweat proof and skin friendly finish to provide maximum comfort and support. 5Long Service Life: The mouse has passed 5,000,000 keystroke tests to ensure durability and long service life.Shipped Without Batteries)1 x WirelessMouse 1 xSignal Receiver