Review on 🎧 U2 Mini Bluetooth Aux Adapter: Wireless Car Receiver with 3.5mm Jack, Handsfree Calling & Built-in Mic - Ideal for Car Speakers & Home Audio Systems by Conrad Greene

I bought this when my new car arrived with a broken Bluetooth hands-free module. I tested it on my home radio and heard the intermittent hum mentioned by other reviewers (an additional port filter might help here). However, when I tried it in my car (Dodge Journey), the sound was flawless. After the dealership fixed the Bluetooth in my car, I didn't need it anymore, so I passed it on to a friend who needed a similar solution. It looks like cars and sound systems that make a humming noise have some kind of grounding problem. This can be remedied with a cheap filter plugged in between the headphone jack and the aux port. For my use it worked out of the box and I had no complaints. I didn't get a chance to test the phone call option as this device was tucked away in my center console - impractical for calls but tucked away what I needed for music streaming.