This revolutionary concept, named Skinput, Aims to make the largest organ of human body on a touch screen. It developed jointly by engineers from the American University of Carnegie Mellon and Microsoft. This prototype allows to make a call, change songs or play Tetris with a simple touch to your arm. It is based on acoustic sensors that collect low-frequency sounds that sound when touching the skin and correspond to an action in the system, according to a predetermined pattern.

As shown in the video that accompanies these lines, to operate this system the user must put a bracelet on his biceps, Where they are integrated with a projector that shows the images in his body and the receiving system that transmits the received data to other devices - such as a phone or a computer-through Bluetooth connectivity.

Skinput is able to detect interactions with five different parts of the arm with 95% accuracy and works even when the user is moving, its creators have explained to the specialized on website Cnet. This product, which will play Tetris, change songs or make a call with a simple touch to your arm, it released in mid April in Atlanta (USA), as part of the conference Computer-Human Interaction.