let's bring in professor david carroll. his team invented the powerful fabric.is one of the coolest things i have seen in a long time. i was joking about the undyes. how does the product work? >> well, it converts your body heat in to electricity. you heat the fabric up and causes the electrons to move around and creates a voltage and hook it up to your phone. >> so, am i putting it in my pocket? do i stick to my -- >> i have an example. >> let's do it. >> here. >> this is power felt. this is the material here. someone has accidentally cut it in the emblem of the university and you wear it. the shirt has a connector here and goes in to an apple product. you can put any kind of connect kor on it. and run around the track or whatever you do and charges the phone. >> it is amazing how the logo thing just happened, professor. >> i know. >> if i was in better shape, run four or five hours and i can't go for a jog now because i need the music and almost dead. that solves that problem. >> that's exactly right. that's what that does. it will give you a couple of hours w