I only have positive things to say about this device. I was needing something that I could listen to training material off of my phone into my older car radio. However, I did not want a bunch of wires everywhere where it takes me two minutes to get everything hooked up. Instead, I simply set it up the first time, and my phone automatically connects to my car radio as soon as I get near it. All I have to do then is press play on my phone.