The individals who possess this ability are all capable of gaining a perspective of their surroundings by listening to the echoes of sound bouncing off objects and beings in the area. They can then judge the shape, distance and size of objects within the area and can create a visual map in their mind of what the surroundings look like. They can use this ability to "see" their surroundings as well as someone with perfect vision can, and would have an advantage in darkness or when others have their own vision impaired.