electricity that's being used anyway? we are recycling light. the extra efficiency means that the silver strips that usually run through solar panels are no longer needed, freeing up new design ideas. these cells have been shaped to fit a headphone band and this robot is responsible for squirting electrolytes on them to allow conduction. it looks like it's going to drip bits in between. but it's actually doing very precisely? it's more efficient and predictable and for sure doesn't make any mistakes. the final step is lamination to give the cells custom textures. and into the press it goes. and here's the finished product. giovanni, tell me about the prototypes you've got here? what you see here is a fully self powered, sustainable powered headphone. it has a leather structure to it. and it will actually absorb any kind of light and convert that light into electric energy and charge the battery. if you go to the gym, whatever you do, they will always charge during the day. but the luxury of not needing