Battery powered Batteries Mouse ambidextrous Ambidextrous HP 435 Multi-Device Wireless Mouse, Ambidextrous, RF Wireless + Bluetooth, 4000 DPI, Black HP 435 Multi-Device Wireless Mouse. Form factor: Ambidextrous. Device interface: RF Wireless + Bluetooth, Movement resolution: 4000 DPI, Buttons type: Pressed buttons, Buttons quantity: 5, Scroll type: Wheel. Power source: Batteries. Product color: Black