Connectivity Technology : Wireless - RFWireless Receiver : USB wireless receiverConnection Type : USB 2.0Movement Detection : OpticalPower Supply :1 x AA BatteryIntelligent connectivity, noneed to code, plug and playErgonomically designed, comfort grip800 dpi/1600dpi, cursor speed adjustablePower switch,Scrolling Wheel FeatureComfortable and Contoured ShapeSupports System:Windows XP / Vista / 7 / 8 / 8.1 / 10Dimensions:9.9 x 3.8 x 6.1 cm