... OEM Service professional mini mp3 portable speaker1. Small size portable speaker, easy to put in your backpack during traveling or ... with laptop, iPod,MP3,MP4,MP5,cellphone.3. Dynamic bass system sounds stirring, transparent clear.4. Fashion design, portable, easy ... 5.In-built lithium battery with high power capacity6.Matching all audio devices. Technical Specification Speaker system2.0 built-in bass ...