... computer, MP3,MP4,CD.etc.6:with recording functionC:Product feature: 1.portable mini waisteband design, use for travel, guide, public ... entertainments, sales improvement, etc..2.with digital reverberation function, ... ROCK,CLASSIC,JAZZ,BASS,FLAT..3.with 4.3inch TFT HD corlorful LCD screen, TF/USB with FM,MP3,MP4,MP5 music, ...