Well , as you may know there's some research done in the field of producing energy from mechanical eng , I mean , producing electricity from mechanical energy. So , the point is that when you take device and push the button , you produce enough energy
But you don't need a battery ?
to make electricity. Yeah , that you don't need a battery. So , it's something like hand dynamo robot. A real high-tech version of it.
Mm-hmm.