The Forever TR-370 Bluetooth FM transmitter is a reliable device that ensures comfort and safety while traveling by car. Compatible with Bluetooth technology, it allows you to enjoy your favorite music and make phone calls without holding your phone. With a built-in microphone, you can conduct phone conversations freely while driving. The FM transmitter supports files in MP3, WMA, FLAC, and WAV formats. It allows you to connect a USB flash drive to one of the two USB ports on the transmitter and read music from a TF card. The Forever TR-370 FM transmitter has three USB ports - USB-A 2.4 A, USB-A 1 A, and USB-C PD2.0 30W, enabling fast charging of up to three devices simultaneously. This is the perfect solution for travelers who need to charge their smartphones, tablets, or other electronic devices while on the road.