Control wireless streaming Bluetooth audio with the Pyle Wall Plate Controller. This in-wall amplifier receiver adds microphone paging and speaker control in a convenient, mountable location. Built-in Bluetooth allows you to stream music to a connected intercom, speaker or microphone system -- quickly & easily. Enjoy features like rotary control volume adjustment, microphone input, USB port for device charging, Aux (3.5mm) jack for connecting external devices, along with an included power adapter (if you decide not to 'hard-wire' the power connection). The rear panel speaker terminal block allows you to connect, and stream your audio to a pair of connected speakers. Universal standard size gang plate fits most deep electrical boxes and allows for a clean in-wall installation. Add convenient audio control with the Pyle PWA15BT In-Wall / Wall Plate Bluetooth Audio Control Receiver.