FM Transmitter Earldom ET-M74, Bluetooth, USB, Micro SD, QC 3.0, Black Feature FM Transmitter Bluetooth version: V5.0 Supports Micro SD/TF card and USB Flash device Supports MP3/WMA/WAV files LCD screen Last frequency memory feature Built-in fuse FM channel range from 87.5 – 108 MHz (Total 206 channels Quick Charge 3.0 USB charging output Color - Black