Alienware AW610M. Form factor: Right-hand. Movement detection technology: Optical, Device interface: RF Wireless+USB Type-A, Movement resolution: 16000 DPI, Response time: 1 ms, Buttons type: Pressed buttons, Buttons quantity: 7, Scroll type: Wheel, Acceleration (max): 40 G. Illumination colour: Multi. Power source: Batteries/Cable. Product colour: Black, Grey