Great little device and highly surprised at its small form factor.

Place it into cigarette lighter receptacle, turn on your device's Bluetooth, connect and tune your car radio to FM 96.4. Can also download the Roidmi App to adjust the FM frequency between 8.75 – 100mhz and an option to reduce the background noise but its not as dramatic as people are reviewing.

Pros: Small footprint, works on all cars with an Cigarette lighter receptacle and FM radio reciever, plug and play, Android/iOS app for car voltage checking, reducing static and FM frequency adjustments, Charging ability and can change LED color inside app or just turn it off completely. Cons: Receives calls through car radio but mic is used on the device, quality of music can deteriorate if the device is turned up too loud.

The charging is good, music quality is significantly worse than wired connection. Also, finding unused and clear fm frequency is somewhat challenging. Even if you find it, the quality of the music is not as good as wired connection. I would recommend buying this to charge the phone as the main use and not listening to music.

This small device is the best on the market. If you’re having troubles or music is not clear, you probably need to change the frequency you have set on the radio. My music is clear. Ofcourse near the city it is a little distorted but still very bearable, everywhere else it’s crystal clear. It’s simple and easy to use. The instructions not really clear. But just download the app, set your freq to a station with not much interference and boom you’ll be happy days!