Hi Anthony:
We have a couple of Bluetooth speakers that are powered (needing an AC connection) but receive their audio signal by Wireless Bluetooth. But of course your system has to have a Bluetooth transmitter built in to transmit to the master speaker with built in BT Receiver and power amplifier. Check out our new XMP100 in case you can add an amplifier inside the house and just run speaker wires to something like the AP670 that you expressed interest.
TL/4145