The smart watch strap we're developing lets you make calls with your fingertip. You can hear the voice simply by place your finger to your ear, while you speak through a mic embedded on the strap. Pair up with your Apple Watch, Pebble Watch or any sort of analog and smart watches, you can make a call and privately hear distinguished voice, without speakerphone or headset. How would you use it? Where do you think it is most needed?