Accented characters.
This is an unofficial driver for a PalmOne Wireless (Infrared) Keyboard that you have hacked to transmit its data via Bluetooth rather than (or in addition to) IR.
This is based on BluezIME (and includes all the BluezIME features) and is open source. Source code: https://github.com/arpruss/p1keyboard
For instructions on how to connect the PalmOne Wireless Keyboard to Bluetooth, see: http://www.instructables.com/id/Use-Palm-infrared-keyboard-with-Android-devices/