The SCOSCHE BTFREQ power delivery universal 5.0 Bluetooth car kit adapter is perfect for making hands-free calls and wirelessly streaming music from your Bluetooth compatible device to your vehicle's radio with a crystal-clear crisp sound. You can stream audio files using your device’s Bluetooth or using the 3.5mm output on your device with the included 3.5mm AUX audio cable. Our unit comes equipped with the latest Bluetooth 5 0 technology for a strong wireless streaming connection. Enjoy crystal clear calls inside noisy vehicles, and the multi-function button (MFB) allows you to answer incoming calls with a simple push of a button. It also controls car FM transmitter volume up/downplay/pause answer/hang up the phone or voice controls like Siri and Google Voice Adjust the FM frequencies using the frequency tuner button. The car charger plugs into any vehicles 12V port to power the FM transmitter for car and charge your power delivery standard USB-C or USB-A compatible device, at the same time. It charges an iPhone XS Max, XR, X, 8, 8 Plus. Samsung Galaxy S10, S10+, S10e, S9, S9+, Android, Nintendo Switch or any standard USB-C and USB-A device. The convenient design of the LCD display provides an easy to read interface It’s easy to sync just find an unused FM frequency on your vehicle's stereo and match the same frequency on the FM Transmitter. One-click access makes it easy to use Siri and Google voice on your device with the Bluetooth FM transmitter. The audio transmitter is compatible with your iPhone, iPod, Android, MP3 Player, Bluetooth compatible, or any other mobile device with a 3.5mm AUX output port. Perfect for use in your vehicle while making hands-free calls listening to music every day or during a long road trip!