FM Transmitter is a mobile application designed for Android devices that works alongside the Smart Car Charger F2. The app provides a fast FM radio frequency tuner and instantly pairs with the F2 charger to broadcast calls, music, and navigation directions to the car's FM radio.

The Smart Car Charger F2 is a Bluetooth FM transmitter with built-in charging capabilities. By pairing with a smartphone, it allows users to listen to calls, music, and navigation directions through their car's speakers. The FM Transmitter app complements the F2 by providing a fast and easy way to tune into the desired FM frequency.

This app is ideal for those who rely on their car's FM radio for audio output. The FM Transmitter app is free to use and can be downloaded from the Google Play Store.