Trust 20286, Ambidextrous, Optical, RF Wireless, 1600 DPI, Black, Red, White Trust 20286. Form factor: Ambidextrous. Movement detection technology: Optical, Device interface: RF Wireless, Movement resolution: 1600 DPI, Buttons type: Pressed buttons, Buttons quantity: 4, Scroll type: Wheel. Power source: Batteries. Product colour: Black, Red, White