Features: This Wireless Mouse is a good choice for you: 10m Wireless Operation Distance, Ergonomic Design, High Accuracy, High Quality, Modern Design. 2.4GHz wireless transmission up to 10 meters operating distance. Intelligent connectivity, no need to code, plug-and play. Ergonomically designed, comfortable to grip and use. DPI adjustable. Powered by 2 x AAA Alkaline batteries. Low power comsumption. for Nano USB Dongle. Decent and modern design. Compact and lightweight, the USB receiver can be pluged into the back of the mouse, easy to carry. Ideal laptop companion for home and office use. RF Carrier: 2402-2480MHz RF operation channel: 16 Operation range: 0-10m Operation systems: for Windows 2000,ME, XP, Vista, 7 Operation current: 15mA, 1.5V USB: USB 2.0 Power: 2 x AAA batteries not included Specifications: box: Yes Color: Black,white Item size: 112*57*22mmmax Package size: 118*67*36mm Net weight: 68g Package weight: 77g Packing content: 1 x 2.4G Wireless Mouse 1 x USB dongle