I was wondering if it would be feasible to create a bluetooth device with arduino that has multiple bluetooth radios. One would be a master (receiving) radio, and then like 2 or 3 slave (transmitting) radios that each connect to a different bluetooth speaker and transmit the data that it received from the master radio to each of the bluetooth speakers. thoughts or suggestions?
It is probably possible but depends on your electronics and programming ability.
It is not a beginner project.