Key Features: Wireless 2.4GHz: Enjoy the freedom of movement without the hassle of tangled cords. Compact (Mini): Save space on your desk with the compact design of the keyboard and mouse. UV Printed Keys: Enjoy clear and long-lasting key labels that won't fade over time. On/Off Switch: Conserve battery power by turning off the devices when not in use. AAA Keyboard Battery II | AA Mouse Battery (not included): Power your devices with easily replaceable batteries. Compatible for All Operating Systems: Works seamlessly with Windows, Mac, and Linux systems.