2.4Ghz wireless transmission up to 10 meters operating distance. Auto frequency hopping rated operation. Intelligent connectivity, no need to code, plug-and play. Ergonomically designed, comfortable to grip and use. Dpi adjustable. With on/off power switch. Powered by 2 x AAA alkaline batteries. Low power comsumption. Nano usb dongle. Many colors to choose decent and modern design. High quality, with one year warranty. Compact and lightweight, the usb receiver can be pluged into the back of the mouse, easy to carry. Deal laptop companion for home and office use.