Review on Upgrade Your Ride With Criacr Bluetooth FM Transmitter: Dual USB Charging, Hands-Free Calling & MP3 Music Player by Jeff Jordan

I've had mine for four years. It has worked well. It connects to my phone without a problem. Every once in a while it will connect but the sound continues to play out of my device, which is weird. If I disconnect the adapter and reconnect, it works again no problem. The controls are kind of counter-intuitive. I always want to plug it into the cigarette lighter upside down. So overall, it's not without its bugs but a very useful device for the low price.