Battery powered Battery Mechanical keyboard Mechanical key switch Numeric keyboard Y HP Wireless (Link-5) Keyboard, Full-size (100%), Wireless, RF Wireless, Mechanical, Black HP Wireless (Link-5) Keyboard. Keyboard form factor: Full-size (100%). Keyboard style: Straight. Connectivity technology: Wireless, Device interface: RF Wireless, Keyboard key switch: Mechanical, Recommended usage: Office. Product colour: Black