The Bluetooth FM Transmitter with USB-C and USB-A Charging Port in Black by Black Box is a portable audio accessory that allows you to stream your music wirelessly to your car stereo system. With both USB-C and USB-A charging ports, you can easily charge your devices on the go. The FM transmitter is compatible with various devices and offers a simple and convenient way to enjoy your favorite music while driving. Made in China, this sleek black transmitter is a must-have for any music lover looking to enhance their driving experience.