2.4 GHz technology: anti-interference and power saving ergonomic, rubber grip for great working comfort uses two AA batteries - battery life up to 36 months (able to use one or two AA batteries) LR6C. (Battery life may vary based on usage and battery conditions.) adjustable dpi: 800/1200/1600 dpi infrared sensor technology: allows the mouse to function at a lower power consumption level interfaz: USB RF frequency: 2.4 GHz botones: seven (left, right, middle button with scroll, previous page, next page, flying scroll, and dpi adjustment button) resolución: 1600 dpi infrared system requirements: Windows® 8/Vista/XP or Mac OSX 10.4+ free USB port dimensiones: 89 x 42.5 x 121 mm weight (body): 100 g