it has to it has to hear the speaker
Mm-hmm.
and um , so it could be in the television set , could be in the device , but somewhere you have to put the microphone , um and a w a way of making beeps or sounds so you can find it when it's gets lost. Um so the other w thing that we  So. Our method for going about this is we've looked at uh the histo hi historical record , what's worked , what hasn't and then we also um  we wanted to evaluate some new materials
and we contacted manufacturing for their input because , course , we m might  come up and choose the material that then manufacturing didn't have the technologies or capabilities to offer us , so uh this is the approach that we took during our um  our research.