... mini speaker 1. Portable speaker 2.Built in battery,USB charging. 3.Mini style as a gift 4.Apply to mp3,pc,etc. hamburger mini speaker ... Detailed Product Description1. Mini, portable digital speaker for your convenience, connecting to your MP3,MP4, CD, DVD,2. iPod, iPhone, GPS, PSP, mobile ... world. Technical specificationsHamburger shape mini portable speaker .With TF card .MP3 ... mini speaker