Digital Multi-Functional USB Speaker Colour Flash Mini Speaker BS- ... MMC card,USB,mobile phones,MP3,MP4 2,With FM Digital Multi-Functional USB Speaker Colour Flash Mini Speaker BS- ... SD,MMC card,USB,mobile phones,MP3,MP42,With FM Digital Multi-functional USB Speaker Operation Manual Detail:1. Charging voltage ... USB device, it is also a FM radio during the frequency range: 87.5 - 108MHz. 3. We don't have ...