Review on UGREEN Wireless Bluetooth 5.0 Car Adapter - Portable Bluetooth Receiver for Music Streaming, Sound Systems, Speakers, Headphones - Hands-Free Car Kit with Microphone by Doug Hawkins

Very poor sound quality compared to cable accessories. Much quieter, and as I listened to familiar songs, it was immediately apparent that certain sounds in the music were either so quiet (or absent) compared to other sounds that the songs sounded noticeably different and were absent. Very disappointed, went back to my aux cable. Edit: After the seller contacted me, I was told that it is normal for this receiver to have lower sound quality than the AUX port. I received a full refund. Although I was disappointed with the product, I appreciate the willingness of the sellers to fix things.