Have yourself to experience the most innovative 2.4GHz remote controller Ring Mouse from Genius; As easy as moving your thumb tip, you can lean back and enjoy its total controlling capability for web browsing, media playing and many other applications. Ring Mouse uses Genius Touch Control technology (US Patent No.: US7298362) to enable its sensitivity up to 1000 dpi ,thus creates a smooth, handy control and a low friction working comfort. The 2.4GHz technology minimizes interference and works up to 10 meters with the small Pico receiver. Powered by high efficient rechargeable Lithium battery and you can always charge up with the portable USB charger. A hard-shell carrying case is also included to secure maximum protection when travelling.