Support outside signal switch directly; Supports Bluetooth v3.0 + EDR; Supports USB / MICRO SD / Bluetooth / FM / LINE; Module designed with MP3 / WMA audio decoder chip; Supports music play from USB / TF card; Supports USB / TF card switch previous / next song fast forward rewind volume control EQ play / pause stop single repeat mute shutdown elections songs; Supports FAT16 FAT32 files; Supports MP1 Layer3 MP2 Layer3 MP3 Layer3 versions; Supports 32~320Kbps songs; Support power off and memory function: Memory power and volume? the song played before; Supports AUX audio input; Supports USB flash drive or TF card up to 16GB