... Speaker Instructions:1, battery: internal lithium polymer batteries, when using USB power supply, you can play music while charging.2, LINE ... music, connect your MP3, MP4, iPod, CD, PSP, mobile phone, laptop, USB drive, SD card, GPS.4, metal casing, more noble fashion ... , different, various colors give you more choices.5 USB, batteries, computer, adapter, DC-5V a variety of power supply ...