... USB/SD Card mp3 decoder Mode No.:ES-501M combination of mp3,fm and alarm clock Used for car ... audio,amplifier,audio combination Product Namemp3 decoderMode No.ES-501MVoltage3.7VFunctionMp3+Fmradio+Alarm ... SD Card to play musicUsed forCar audio, original audio combination, amplifier,mini reader,electronics toy and so onControllerwireless remote controllerScreenYes / break ...