The MP3 FM module for cars will force any old device (bobbin recorder, player, radios, old tape recorders and music centers) to play music files recorded on a USB flash drive or TF card. There is a built-in FM tuner, operates in the range of 88-108 MHz and can be controlled remotely using an IR remote control. A USB port can be used to charge your mobile devices. There is also an AUX input for connecting external devices: speakers, phone, tablet.