... Supports USB flash diskPower supply USB powered / Lithium Polymer battery Battery capacity 400-600MACharging voltage 5VProduct Dimensions119*62*30mm Net ... , connecting your MP3, MP4, CD, DVD, iPod, iPhone, GPS, PSP, mobile phone, notebook computer, etc. 2) This digital speaker can be ... -5V allow you to enjoy the charm of digital products at any time. 2012 magic bean mini speaker for MP3/MP4/mobile