Review on Enhance Music Streaming with MAEDHAWK Bluetooth Receiver BT Cable: BT5.0, 3.5mm Audio Jack, Hands-Free Calling by Darryel Tokarczyk

There is one from another brand and they work great, very low noise and great sound quality. I have to say BT has come a long way in the last 15 years, I honestly can't tell much of a difference if at all if your car is old but you have aux and don't want to buy a new stereo is the way to go, and without a battery, you can just plug it in and forget it.