This is one of the coolest inventions in the world ever discovered. A Bluetooth device implanted under human skin which looks like a tattoo. It was developed and designed by Jim Mielke and it has many advantages - you can answer your phone by pushing a button on your arm and while your speaking, a digital video with the caller pops up and when you are finished the tattoo vanishes.

The tattoo doesn’t have any adverse effects on the human body and as an addition it monitors your blood to alert people in case they suffer from blood disorders. This gadget is waterproof and it can transmit data to all wireless devices. What more do you need to know? Definitely gonna get one of these!

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