Logitech M335 Wireless Mouse, Ambidextrous, Optical, RF Wireless, 1000 DPI, Black Logitech M335 Wireless Mouse. Form factor: Ambidextrous. Movement detection technology: Optical, Device interface: RF Wireless, Movement resolution: 1000 DPI, Buttons type: Pressed buttons, Scroll type: Wheel. Power source: Batteries. Product colour: Black