Adafruit IndustriesMini Wireless USB Keyboard/Touchpad | 922Keyboard and Mouse Combos

You can add a miniature wireless controller to your computer project with the Mini Wireless USB Keyboard/Touchpad! It is a small but usable keyboard and touch pad that can be accompanied by a computer such as the Beagle Bone or Raspberry PI. The keyboard is battery powered that can be recharged via the included USB cable. The keyboard communicates back to the computer via a 2.4 GHz wireless link (not Bluetooth).