Features: * 2.4GHz wireless transmission up to 10 meters operating distance. * Built-In mouse memory, no recording is needed after battery replacement. * With 6 Keys, including Scroll Wheel, Page Forward and Page Backward buttons for easy Internet Surfing. * Intelligent connectivity, no need to code, plug-and play. * Ergonomically designed, comfort grip. * Many dormant class control and more power-saving hibernation connectionless. * 800/1600dpi, cursor speed adjustable. * With On/Off power switch. * Low power comsumption, the service life of one AA Alkaline battery is up to six months. * Low voltage alarm function. * Micro-receiver. * Shiny and fashionable ruby red. * Decent and modern design. * High quality, with one year warranty. * Ideal laptop companion for home and office use. Speicifications: * RF carrier: 2402-2480MHz * RF operation channel: 16, auto frequency hopping * USB: USB 2.0 * Operation systems: Windows 2000, Me, XP, Vista, Win 7 * Power: 1 * AA battery (not included) * Rated operation current: 15mA, 1.5V * Color: Black / Red Optional (as shown in the pictures) * Mouse size: 100*65*35mm * USB receiver size: 18*14*5mm * Mouse weight: 64g * Receiver weight: 2g * Package size: 201*100*56mm * Package weight: 120g.