Bluetooth Audio Dongle Receiver for Speaker / Wired Headset

I got this to wirelessly send music from my android to my car stereo system. My car's radio didn't come with an auxiliary jack so I installed an aftermarket adapter some years ago, with the jack hidden low and out of site on the dash. As far as...

This works reasonably well for my purpose. I wanted to play MP3s from my phone on the stereo in my car without wires and without much expense. I just plugged this in to the car's aux input, paired it with my phone and it worked. Sound quality is good...