1.SD/USB card + FM radio 2.can supply power to mobile 3.Perfect sound quality 4.CE/ROHS/FCC 5.OEM Service professional mini mp3 portable speaker1. Small size portable speaker, easy to put in your backpack during traveling or exercising2.Compatible with laptop, iPod,MP3,MP4,MP5,cellphone.3. Dynamic bass system sounds stirring, transparent clear.4. Fashion design, portable, easy to carry.5.In-built ...