In the test: switchable Bluetooth keyboard ZAGG Limitless
Pairing your Limitless Keyboard – Welcome to ZAGG Care
ZAGG Limitless, Full-Size Universal Bluetooth Keyboard for Apple, Windows, Android and other Bluetooth enabled devices - Black : Electronics - Amazon.com
ZAGG's universal Limitless full-sized Bluetooth keyboard is just $15 shipped (Reg. $35+) - 9to5Toys