The Verbatim Wireless Bluetooth Mobile Keyboard is designed for use with Android laptops and smartphones. It supports pairing with up to six Bluetooth devices

Smartphones have impressively large screens and vast swathes of memory to store music and photos, but they aren’t quite as accomplished as devices on which to compose lengthy emails or type with accuracy. A Bluetooth keyboard can make a marked difference. This second-generation folding keyboard is compatible with most Android smartphones and tablets as well as iPhones and iPods. It can store pairing details with six Bluetooth-enabled devices and is powered by a single AAA battery.

The Bluetooth Mobile Keyboard costs $79 from Verbatim.com