dodocool Wireless FM Transmitter Radio Car Kit with Hands-Free Function and USB Car Charger for Smartphones Portable Audio Devices with 3.5mm Audio Plug Black

Features
Wirelessly Music Play
Play music in your smartphone or other audio device through your car's FM stereo system.
Hands-free Function
Allow hands-free phone conversation through the car stereo and your phone's microphone.
Stay Charged
The car charger with an extra USB port can charge any of your USB powered devices with maximum output of 2.4A while driving. Work with standard DC 12 - 24 V vehicles.
Wide Compatibility
Compatible with smartphones and other popular audio devices with a 3.5mm audio jack.
Easy to Use
With easy-to-read LED display and easy-to-use buttons to adjust FM frequencies between 88.1 MHz to 107.9 MHz.