Genius LuxePad A110 Wired Android Keyboard
Bluetooth keyboards are great, but if you forget to recharge them, or replace batteries, you're out of luck. Many airlines also still forbid the use of Bluetooth devices in flight. (How well that rule is enforced is another matter.) At any rate, you may want to consider an external keyboard that plugs directly into your tablet, no Bluetooth required. The LuxePad A110, from Genius, connects to Android tablets via micro USB, and it only costs around $16 on Amazon.com. The keyboard comes with a stand that can position your tablet at different angles, too.