Support outside signal switch directly. Support USB/SD/AUX/FM automatical shift. Module includes the MP3 lyrics recode chip. Support USB SD MMC play. Supports last / previous song pause EQ (five modes) volume -/+ single repeat mute shutdown and direct election. Support FAT16 FAT32 file system. Support for MP1 Layer3 MP2 Layer3 MP3 Layer3 version of the song. Support 32-320 KBPS MP3 songs. Support power off memory function: memory the play songs and volume before power off.Support the date time according to the lyrics synchronization. Radio frequency: 87.5 to 108.0 MHz