Life P3: Best approach to disconnect from a device that is not available?

When my earphones (Life P3) are connected to a device, I have to access that device and disconnect them before I can reconnect them somewhere else.

If that device is not accessible, what can I do? Is there a way to forcibly disconnect the earphones?

I eventually solved my problem by resetting the earphones, but this seems to unpair them and put them back to factory settings. Too drastic of a measure.

Thanks in advance!