... 2.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. ... If we have a computer or other audio equipment MP3/MP4/MP5, as long as it is input ... audio input, there is a most important function, he can also audio output, this is not the function ...