Product information Technical Details Brand Razer Manufacturer Razer, Razer Colour Black Item Height 0.1 Centimeters Item Width 12 Centimeters Product Dimensions 17.6 x 12 x 0.1 cm; 480 g Batteries 1 Lithium Ion batteries required. (included) Item model number RZ01-04630100-R3A1 Voltage 10 Volts Power Source Battery Powered,Corded Electric Hardware Platform Laptop, Personal Computer Operating System Linux, Windows XP, Windows 7 Average Battery Life (in hours) 90 Hours Are Batteries Included Yes Lithium Battery Energy Content 90 Watt Hours Number of Lithium Ion Cells 1 Manufacturer Razer