This product barely does what it's supposed to do, i.e. allow you to listen to your stored music via your car's FM radio. I used the transmitter correctly, and tried every FM station-- but the sound quality was always so poor. I didn't expect CD quality or anything; even 8-track quality would've sufficed! But it wasn't even that good.I only spent $6 for this thing and I *still* feel ripped off. That's how bad it is.