Mpow Bluetooth Car Kit, Wireless Receiver for Handsfree Talking and Music Streaming with Ground Loop Noise Isolator for Car with 3.5mm Aux Port

I have tried several other gadgets similar and each had their issues, but this one actually works and works well. It completely removed all the engine whining. The control module contains the microphone and can be mounted most anywhere which allows it to be closer to you so that the microphone picks up much better. the iPhone connects immediately , but will have to unplugged the device once you leave the car and come back so that the phone will reconnect to the bluetooth. Great fix to older cars without bluetooth and needing hands free talking.

So far so good, I just hooked it up in my car and it sounds great. The old one that I replaced had a terrible buzzing sound, this one sounds much better and that buzzing isn’t there.

Sound quality sounded like a tin can, power cut in and out when touched/moved. I blame poor wiring, likely just a defective item which is one thing, but they wouldn't let me return it for a new one in order to give them a chance. Fortunately amazon let me just return the item for a refund and I ordered a different brand.