2-button Ergonomic USB 800dpi Optical Finger Mouse The USB 2.0 Optical Finger Mouse offers a new way to use your mouse, is perfect for laptop computer user. No mouse pad is required, just slide on any surface. With the movement of just your fingers, you can easily control the cursor. USB interface, Plug-and-Play, no installation needed, all the functions of your regular mouse. No mouse pad required, can also be used on your desk. Ergonomic and stylish design, reduces wrist strain and tiredness. Adjustable strap for any sized finger, wear on your left/right hand. 2-button design with scroll wheel. Digital encoder technology for precise movements. Textile coating cable, super-lightweight.