Mouse - wireless, optical, 1000DPI, 3 buttons, miniature sensor, USB and wireless USB receiver, symmetrical , black Put an end to the limitations of useless cables and spoil yourself with the latest technological amenities using the A4tech G3-270N-1 wireless mouse with optical sensor and the V-Track scanning system. Due to its ergonomic design, it fits nicely into any hand and ensures comfortable use. Putting the mouse into operation is super easy. Simply plug the nano receiver into a USB port on your computer and turn the mouse on. The mouse uses a frequency of 2.4GHz for the communication with the receiver and features the PowerSaver technology, ensuring that its AA battery lasts longer.Specifications:Supported operating systems:Windows XP / Vista / Windows 7 / Windows 8