You can·test a Flexipanel module to enjoy yourself.
Rarely the module is found on any Bluetooth(BT) searching (and I have tried several, see below).
When it is found it is rarely able to connect to serial port (the only profile it supports).
When it connects it is rarely able to send any information at all.
When it sends information it is rarely right. You can check a control several times and the·values are·wrong.
I must to say that I have tried to connect it to different BT peripheral: a·laptop, a·PDA and a·phone.
Sometimes it works, sometimes it does not.
The software is pathetic. The clients are painfully slow. The so called 'Designer' is·made in Mars.
Please, avoid this module as far as you can.