This wristband turns your fingers into a phone

A new gadget on Kickstarter is basically designed to make you feel like a secret agent. It's called Sgnl, and it lets you make phone calls just by wearing a wristband and touching your ear, with your fingers acting as the receiver.
There's no speaker on the device — instead, audio is directed into your ear through vibrations that are sent through your body, into your wrist and up to the fingers touching your ear; a mic is built into the band. It's not a new concept, but it's a neat tw