1600 DPI 1600 Battery powered Batteries Mouse ambidextrous Ambidextrous HP 235 Slim Wireless Mouse, Ambidextrous, Optical, RF Wireless, 1600 DPI, Black HP 235 Slim Wireless Mouse. Form factor: Ambidextrous. Movement detection technology: Optical, Device interface: RF Wireless, Movement resolution: 1600 DPI, Buttons type: Pressed buttons, Buttons quantity: 3, Scroll type: Wheel. Power source: Batteries. Product color: Black