Review on 🚗 Wireless Bluetooth Handsfree Call Car Charger with FM Transmitter, Mp3 Audio Music Stereo Adapter, Dual USB Port Charger Compatible for All Smartphone Brands: Samsung Galaxy, LG, HTC, and More. by Roger Sanders

Great solution, great price, great sound quality! Love it. Got one for myself and then got a few as gifts because I thought it was so cool. As a weird bonus; The bluetooth part will announce itself when you turn on the car and set it to your bluetooth station. After it says it's on, it then says (in my experience) "normal" or "abnormal" voltage. I don't know why it tells you anything about your battery, but it was actually helpful in the winter when my battery was low on particularly cold days. The Bluetooth device literally announced that I needed to give the car more time to warm up. Strange bonus.