Review on Upgraded Bluetooth Transmitter Wireless Headphone by Krystal Jones

I had high hopes for this transmitter, but unfortunately not justified. The sound quality was very good, except for the very loud one. Nothing I've tried lowered the volume. I will return this transmitter. Also, when I changed my rating to 4 stars, I found experimentally that the transmitter works fine with all my headphones except the Mpow30 headphones. I don't know why they won't let me control the volume, but the sound quality on other headsets is so good that I decided to keep the transmitter.