For use with Sony camcorders that have slot-in for wireless or Sony extension units with slot-in for wireless. The A-15PIN allows the A10-RX to be used in the Sony slot without the need for external cables. The audio is passed through the internal slot as a 2 channel AES input. When connected to the camcorder via the A-15PIN, the A10-RX receives power and powers up and down with the camcorder.