... radio 3 USB/SD card 4 Link in 5 with remote control& LED display TM19 Hot USB SD audio mp3 USB SD FM ... features:LED display, with a power amplifier, MP3 / FM / USB / SD Card functionality, with LINE IN / OUT, with a ... radio: function available to meet the MP3, radio common needs;4) USB / SD Card: to meet the convenience store use;5) ... for home appliance,......) And so on. TM19 Hot USB SD audio mp3