Anker Ultra Compact Bluetooth Wireless Keyboard A slim, compact keyboard for one or more of your devices. Ultra Compact Lightweight and slim, this wireless keyboard occupies only a fraction of your precious desk space, without any annoying cords. 6-Month Battery Life Use it for over half a year on just a single two and a half hour charge (based on two hours of non-stop use per day). Comfortable Keys Matte finish low-profile keys ensure smooth and quiet typing. Your most-used shortcuts, multimedia and other operations start at the touch of a button. Broad Compatibility Whether iOS, Android, Mac OS or Windows, link it up with various Bluetooth devices, tablets, phones, laptops or desktop computers. System Requirements iOS, Android 3.0 and above, Mac OS X 10.2.8 or above, Windows XP / Vista / 7 / 8/ 10. Note: Page up, Page down, Home and End keys may work differently in Windows. World Famous Warranty At Anker, we believe in our products. That"s why we back them all with an 18-month warranty and provide friendly, easy-to-reach support. Note: After 30 minutes of inactivity the keyboard will automatically go into power savings mode. Simply press any key and wait 2-3 seconds to wake it up. For Android 4.4 and 5.0.1 users: The Caps Lock indicator will NOT light, but will still function normally. This keyboard is not compatible with Mac OS X El Capitan.