The Forever TR-370 Bluetooth FM Transmitter is a reliable device that ensures comfort and safety while driving. It is compatible with Bluetooth technology, allowing you to enjoy your favorite music and make phone calls without having to hold your phone. With a built-in microphone, you can easily take calls while on the road. The FM transmitter supports files in MP3, WMA, FLAC, and WAV formats. It allows you to connect a USB stick to one of the two USB ports on the transmitter and play music from a TF card. The Forever TR-370 FM Transmitter features 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 on the go.