... is a speaker of Revolutionary Idea. with this speaker, you make you room become a Audio System. this speaker also comes with ... USB contect and TF card, you can listen to Radio news or conected the vibration speaker to your computer with the USB cable ... :*. Material:Good Aluminium Metal*. TF card reading, MP3 format music*. Line in function, connect to your Mp3, iPod, iPhone, Mobile, Computer, Laptop or ...