Aideepen5PCS Audio Receiver Module, BT 5.0 Stereo Audio Amplifier 3.7-5V MP3 Decoder Board Car Speaker Audio Amplifier

Better then Expensive one in the market, sound Quality is awesome, I am using it in Car and with A/V Receiver and its working Excellent.

All you need to know - they work great AND they don’t have an annoying Chinese voice during pairing!

For about 2 bucks a piece you have quality sounding wireless stereo sound. Great to add to all your non-bluetooth capable stereo receivers, automobile head units, and whatever your heart desires.

This is what I needed, something that I can simply connect behind the stereo system and plug the audio connector in the back of the stereo receiver, and just simply pair the module to anything that sends out a Bluetooth audio signal. No pressing any pairing buttons like the old devices. You simply just get one of those 1/8'' stereo to RCA stereo patch cords or one of those 1/8'' stereo to 1/8'' stereo patch cords and plug in one of those 5 volt 1amp or less cell phone chargers into a USB connector to a Micro USB connector and then you're in business, and then just hide the little module where it cannot be seen anywhere behind the stereo system. It really does help save money into having to buy another stereo receiver that has a bluetooth receiver. This is good for anyone who wants to renovate their old stereo system and keep the wires out of sight. I am going to order more of these for other systems that don't have bluetooth and also maybe give one to my friends and family members.

I had to buy a preamp with a volume control to boost the audio output since the gain from this little thing is on the low side. Audio quality and signal to noise ratio is great and quiet, but I can't get more than 75% loudness on any amp I have.