Slim keyboard profile with quiet keys, just.75 inches thin Six rows of quiet keys, A numeric keypad, and integrated 30° tilt stands provide the ideal layout and angle option for the everyday use of the touch typist. One-touch multimedia keys provide instant access to popular functions such as volume control, mute, sleep, email and default browser. Stability-tested plug-and-play 2. 4GHz receiver delivers a stable connection for up to 33ft (10M) with 128-bit AES encryption; provides a convenient reminder to change batteries (2 AAA batteries included) or charge the keyboard batteries and smart battery management provides battery life up to 15 months. Compatible with Windows 7, 8, 8. 1, 10 and above, and macOS 10. 6 and later.