Applications: Apply to PC, mobile phone ,MP3, MP4 and FM radio etc. Frequence ... elegant and lovely,enjoy the adornment and music2,TF card, U disk, MP3compatible with widely read3,Surging bass ... ,U-disk,support MP3 formatApply to PC, mobile phone ,MP3, MP4 and other audio sourceSupports FM radio ... Items can be replaced during the first month or maintained for the first year.Buyers are only responsible for ...