... Speaker Instructions:1, battery: internal lithium polymer batteries, when using USB power supply, you can play music while charging.2, LINE ... , 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 ...