Play your music wirelessly via the Baseus Solar Powered Wireless FM Transmitter & Car Charger! Use the FM transmitter wirelessly, aux, SD cards or USB drives to play your favorite music! You can also charge your device via the USB-A or USB-C port!
Most important features:
Wireless connectivity via Bluetooth version 5.0
Hands-free function
USB slot, micro SD card slot, AUX
Built-in 700mAh battery
Solar charging and USB-C
Operating range: 87.5-99.9MHz
Memory function and auto reconnect - plays where you left off
Play your music and do your bit for the environment! With the Baseus solar powered wireless FM transmitter and car charger, you can reduce your carbon footprint while still enjoying wireless music playback in your car ! 
Play music on solar energy 
With the Baseus Solar Powered Wireless FM Transmitter and Phone Charger for Car, you can harness the power of solar energy to charge your device! You can throw away the plug and charger and use your Baseus FM Leave the transmitter and car phone charger in the sun for just over an hour (75 minutes) and you're good to go! Just in case, there's a USB-C charging cable for those cloudy days! 
Easy installation
To install the device - simply remove the adhesive backing from the device - stick it on the windshield in the most comfortable location, and the quality-controlled magnetic batteries will keep the FM transmitter on the base! You don't have to worry About the magnetic properties, Baseus has tested the best magnet technology available to ensure your device always stays put!