It actually function's both way's. The connecting device must have a new enough bluetooth version. My old GSM did not. All in all found out due to a new amplifier I used also. Nice detail to know for it seems tricky. TX RX is as you expect. If receiver/transmitter is new enough it really is a turn it on set bluetooth and connection will become.

It actually function's both way's. The connecting device must have a new enough bluetooth version. My old GSM did not. All in all found out due to a new amplifier I used also. Nice detail to know for it seems tricky. TX RX is as you expect. If receiver/transmitter is new enough it really is a turn it on set bluetooth and connection will become.

It actually function's both way's. The connecting device must have a new enough bluetooth version. My old GSM did not. All in all found out due to a new amplifier I used also. Nice detail to know for it seems tricky. TX RX is as you expect. If receiver/transmitter is new enough it really is a turn it on set bluetooth and connection will become.