USB Wired Finger Mouse 3D Ring Optical Mouse. This stylish and innovative ring style mouse can hardly be found in the market, with its compact design, you can use it virtually anywhere you like. It works on almost any surface : wood, glass, cloth, your leg, etc., it can even work on top of your keyboard!! An unique and great gift idea for your friends, family members and of course for yourself. Plug-and-Play, no installation needed, no mouse pad is required. Brand-new ergonomic design Key life: over 3,000,000 times *Resolution: 1200dpi *USB2.0 high speed, plug on to use directly *Button dynamics pressure : 600g+5g *Operation voltage : DC5V +- 0.5V *Button life span : 3,000.000 *Operation temperature : -20C-80C *Life span : 1,000.000 hour *Humidity : 10% -9% *Mechanical life span : 100km *Streamline shape three-dimensional feeling fashionable *Ergonomically desired shell it tiredness effectively *Symmetrical designed, fit for both right and left hand users *Unique, colorful and durable roast lacquer technology *Original HP IC 2051 chipset, quality guarantee *No mouse pad required, sliding on any surface *Real hardware resolution, 1200dpi, the fastest mouse in the world, the best buy for professional designers and game fans *3D wheel fully supports the wheel's operational functions of windows OS series *Fulfill the autos roil zooming functions etc by its own drive *Digital encoder technology, operate precisely, prevent fault movement effectively.