one situation in the u.s. and in europe, we hope to be able to get a lot of these balls to the people who can't necessarily afford to buy them at face value. >> now, julia, if i ever become benevolent ruler of the world, i really only have one platform and that is, electrical sockets are the same and adapter plugs are the same. whose adapter plug can go into that thing? do they all have to have the same cell phone to use it? or can they use different ones? >> right now for the socket ii, we have a dc adapter and that's all we've got for now. but hopefully with further prototyping and further iteration, we'll be able to build upon that. that's kind of the socket program build and provide power. >> i love the idea. what a great idea. kick the ball around and then use it to charge your stuff. thank you so much for being with us, jessica, jessica and julia, the co-inventors of the socket. joining us from harvard. i hope that we get to see that