Is Artemis Fowl II's fairy communicator feasible?

In the book Artemis Fowl: The Lost Colony, Artemis is contacted by Holly through a fairy communicator, disguised as a ring.

The phone was disguised as a rather ostentatious ring on Artemis's middle finger. Artemis twisted the ring so that the phone sat on his palm, then closed his middle fingers, extending his thumb and little finger. The sensor would decode vibrations in his little finger and send them as voice patterns. It would also use the bones in his hand to transmit the caller's voice to the tip of his thumb. Artemis looked for all the world like a young boy talking on an imaginary phone.

My question is, what would be the (estimated) costs of R&D, and of the actual product?

posted about 6 years ago

Inspector Sigma‭

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