1.Applications: Apply to PC, mobile phone ,MP3, MP4 etc,and built in FM radio .2.Support SD / MMC card and U disk reads Description: U-121,Support SD / MMC card and U disk reads, support for MP3 format music files2,Can be connected to mobile phones, computers, MP3 players, home audio equipment being loaded3,Built-in FM radio function4,High-fidelity magnetic speakers, wonderful movement, the ...