Battery powered Batteries HP Bluetooth Travel Mouse, Right-hand, Track-on-glass (TOG), Bluetooth, 1200 DPI, Black HP Bluetooth Travel Mouse. Form factor: Right-hand. Movement detection technology: Track-on-glass (TOG), Device interface: Bluetooth, Movement resolution: 1200 DPI, Buttons type: Pressed buttons, Buttons quantity: 7, Scroll type: Wheel. Power source: Batteries. Product colour: Black