... Portable speaker Built in battery,USB charging. Holder for iPad,iphone portable stereo mini speaker Detailed Product Description1. Mini, portable ... convenience, connecting to your MP3,MP4, CD, DVD,2. iPod, iPhone, GPS, PSP, mobile phone, notebook computer, Hi-fi speaker, ... mini portable speaker .With iphone dock.MP3 format music can be played .Connect 3.5 stereo audio cable to the socket “ ...