Description\uff1a 100% Brand New. Ergonomical design - Reduce fatigue effectively. USB interface， Plug-and-Play， no installation need. No mouse pad required， sliding on any surface . Real hardware resolution 1200dpi - fastest and best buy for professional designers and game fans. 3D internet wheel fully supports the wheel operation functions of Windows OS series. fulfill the autos-roll and zooming function etc by its own drive Digital encoder technology， operate precisely， prevent faulty movement effectively Compatible with MS Windows 98\/2000\/me\/XP\/Vista\/Mac OS 9 and above. Package included: 1 x Finger Mouse