Touch & Go navigation system

The visually impaired and blind will definitely find the Touch & Go navigation system to be a boon, so hopefully this concept can materialize into something tangible. This combination of a hand gadget coupled with an earpiece will show directions as a relief map on its wearable navigator with a tactile display. The scale remains at 1:1,000, where the center of the display is where the user is at the moment. An arrow will point towards where one should go, while auditory support through the earphones will speak further instructions to confirm its direction. Looks neat, but there should be a way to locate the Touch & Go just in case it is misplaced somewhere, like say, throwing in a siren wail to alert the owner.