* 2.4G wireless keyboard          

* High-definition optical sensor (800/1200/1800/2400 DPI) for responsive control

* Size:280*120*10mm                                                                       

* Interface:USB port                                            

* 2.4G Hz wireless optical 8-15 meters distance.

* Works on most of surfaces.

* System requirements Windows® 98/ME/NT/2000/XP/Vista/7