The document discusses Sixth Sense technology, a wearable gestural interface developed by Pranav Mistry. It consists of a camera, projector, and mirror attached to a pendant that is wirelessly connected to a smartphone. The camera tracks hand gestures which are sent to the smartphone for processing. The projector then projects the output onto the mirror and surfaces, allowing users to interact with digital information through natural hand gestures. Some applications include getting maps, time, making calls and accessing multimedia or product information through gestures. Advantages include integrating digital information into the physical world through easy gesture control.