The patent says the tattoo would communicate with smartphones, gaming devices, tablets and wearable tech like Google Glass via a Bluetooth-style connection and would include a microphone and power source. The idea is that wearers could communicate with their devices via voice commands without having to wear an earpiece or the the Glass headset.

And how's this for future tech? It could even be used as a lie detector.  "Optionally, the electronic skin tattoo can further include a galvanic skin response detector to detect skin resistance of a user," the 10-page document reads. "It is contemplated that a user that may be nervous or engaging in speaking falsehoods may exhibit different galvanic skin response than a more confident, truth telling individual."