... .FM radio 3.earphone function 4.disassemble battery MP3 Mini SpeakerDetailed Product DescriptionBrand Name: MYSModel Number:MS ... USB charging 5V/8H7-Can be used in computer, mp3, mp4, CD, Walkman, mobile phone, SD card ... characteristics1: SD / U disk music player, believed to have computer friends usually have U disk, a ... or other audio equipment MP3/MP4/MP5, as long as it is input to the speaker, you can ...