●Brand new and high quality ●2.4GHz wireless connection, up to 10m operation distance (depend on environment) ●Power saving: if there is no 2.4GHz signal, it will automatically power off. ●Ergonomic design, fits comfortably on your hand, low voltage alarm function, reminds you to replace battery in time. ●Pen shaped, especially suitable for handwriting input. Real Plug and Play, no extra driver needed. Product Descriptions: Brand new and high quality 2.4GHz wireless connection, up to 10m operation distance (depend on environment). Power saving: if there is no 2.4GHz signal, it will automatically power off. Ergonomic design, fits comfortably on your hand, low voltage alarm function, reminds you to replace battery in time. Specifications: *Operating frequency: 2402MHz-2480MHz *Transmission distance: >10M,360° *Resolutions Adjustable: 500/1000cpi *Tracing system: Opitcal *Operating current: 15mA *Power supply: 1.5V AAA*1 *System requirements: Windows98, XP, vista, Windows7, Tablet PC, Mac OS X, Linux Package contents: 1 * Pen Mouse 1 * USB 2.4GHz Receiver 1 * Mount