Specification: Connectivity: Wireless Device interface: RF Wireless Movement detection technology: Optical Buttons type: Pressed buttons Scroll type: Wheel Buttons quantity: 4 Movement resolution: 1600 DPI Customizable movement resolution: Yes Number of movement resolution modes: 3 Frequency band: 2.4 GHz Design Form factor: Ambidextrous Product colour: Black Power Power source: Batteries Number of batteries supported: 2 Battery type: AAA Power consumption: 20 mA System requirements Windows operating systems supported: Windows 10 Windows 7 Windows 8 Packaging content Receiver included: Yes Wireless receiver interface: USB Type-A Batteries included: No