Aideepen 5PCS BT 5.0 Stereo Audio Receiver Module, 3.7-5V MP3 Decoder Board and Amplifier for Car Speaker

These modules work quite nicely in both Linux (Ubuntu 24.04) and Windows. They have great range (up to about 25-30 feet, even through walls) - and have good audio quality -- and they work without blasting my ears with deafeningly loud blaring voice announcements every time they are turned on -- or connected -- or disconnected (which was a problem I had with another similar module). When these Bluetooth modules power up and connect, all I hear is a few seconds of blissful SILENCE -- followed quickly by the actual received audio, which exactly how I want them to work.Good range - and connect silently without blaring voice announcements

These are amazing for the price. I’ve added Bluetooth to several old school amps and usb powered with audio out makes it simple to add to the back of the an amp with an A/C outlet. I just used double sided tape and stick the module right to the back of the amp. These don’t have any annoying factory voice at power up just a tiny blue light .

The media could not be loaded. 4.5 stars. There is some high pitch interference but it's somewhat low, but audible. For what it is, its awesome. If I can find a way to block,or insulate the module to stop interference, unless it's from itself, I'll bump to 5 star. I'm being picky. Impressive for it's size tho. Any help with noise is welcome. Thanks.

Other reviewers mentioned high frequency noise in the audio output.With the Micro usb cable plugged in I did not get the problem.By connecting a external +5VDC power supply to the BAT + and - I did get the noise.This can be resolved by placing a .1uf capacitor across the input power at the BAT input.All worked great and sound great.

Overall pleased there is a little background static but what can you expect for price point.

So far so good. I fried one, it was my fault. I installed two of the survivors into under rated but very capable 90' era receivers. I haven't noticed any noise either. The last one is taped to a lithium power pack and I use it with a classic wired set of ear buds when damn wireless buds start acting up ar run out of battery. Sweet little board.

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 am using 4 of those in one house, and they work consistently. Audio quality is great and range is better than my older receiver.These are not multipoint, so you cannot connect a new device until you disconnect the old one. Also, the Bluetooth name cannot be changed, so when pairing, all five look the same. There is no pin, so these are not great for apartment buildings.