Oticon Opn AR is a mobile based augmented reality application. It showcases the different between the old hearing aids and the new technology used in the Oticon Opn product. The AR presenter is used as the Point Of Listening in a 3D environment with various sound sources spatialized in 3D. It is created using advanced filtering to give the user a realistic listening experience. Furthermore it is possible to shift between the old and the new technology to compare them to each other.