... music world.Mini, portable digital speaker for your convenience, connecting to your MP3,MP4, CD, DVD, iPod, iPhone, GPS, PSP, mobile phone, notebook ... : Nokia li-ion battery and disassemble, can play music while charging.DC-5V: Direct current 5V(0.4A-1A) power adaptor ... charge, when power is off, indicator light turns red while charging, once charging completes, the light turns off; When power is on ...