Periodic AudioNeon Bluetooth 5.2 Amplified Receiver for Wired Headphones, Professional Condenser Microphone for phonecalls, AAC, AptX, Single Press Switch Between Two Sources

I own two of these and they’re great!They sound better than any other BT adapter I’ve ever used and they’re easy to use!They sound great with quality IEMs too.The mic is awesome too. It picks up voice very well.

I have several bluetooth dac/amp receivers, some much more $ than this one. I really like the sound you get from this unit. It has a really good amount of power to push all my IEM's and most of my Headphones. It has a clean sound and does not colorize it in any direction, maybe a very slight lean toward warmth.The unit is small, I mean about the size of a persons thumb. The shirt clip attaches to either a shirt, jacket lapel or even to your pants waist line. I have to return this for only one issue... the buttons are very small and level with the case. You can very easily be feeling for them and not find them, and if you do, they are so small they are very hard to press. If they were a little larger and raised a hair above the case it would work. I can not even try to hit any button unless I am directly looking for the buttons and lucky. One other issue for me is the volume jumps in 10's up or down when you do hit a button, this is just too much of a jump in either direction for me.I will give them 4 stars just because of what you get for the price, this is outstanding in sound, but the button issue makes it a no keeper for me.