This is a bluetooth receiver made by Metra for their Install Bay line. This is a universal bluetooth device that will stream your music to your system. I use this device often when installing amplifiers into vehicles that do not have a headunit; like a classic car, boat, or a motorcycle. This allows you to flush mount the controller and control the song without having to touch your phone. Remote turn on comes on when streaming media Water resistant Auxilary Input Automatically reconnects with the last bluetooth device Volume & Track controls