Battery powered Batteries Mouse ambidextrous Ambidextrous HP FF587AA, Ambidextrous, Optical, RF Wireless, 800 DPI, Black HP FF587AA. Form factor: Ambidextrous. Movement detection technology: Optical, Device interface: RF Wireless, Movement resolution: 800 DPI, Buttons quantity: 3, Scroll type: Wheel. Power source: Batteries. Product colour: Black