Material ABS material Connection Method 2.4G Wireless Connection Type USB 2.0 Operation Distance 10m Tracking Method Optical Resolution 1000 dpi Power Supply 1 x AA (not included) Supports System Windows XP / Vista / Windows 7 / Windows 8 / Mac OS X 10.4 or higher Other Uses reliable 2.4GHz wireless transmission technology; High accuracy tracking engine, providing more precise control; Power saving switch design; Smooth lines on surface, soft rubber foot pad. Packing List 1 x Wireless mouse 1 x Nano receiver 1 x AA battery 1 x Multi-language user manual