Listen glasses
An optical device with in each arm 4 minuscule microphones. This solution lets you listen undistrubed in the direction you are looking. The row of microphones reinforce the sound forward and subdues the surrounding sounds. The result is a direction sensitivity of +8.2 dB (the best hearing aids obtain +4 dB).
Source: cochlearimplants.yourbb.nlAdded: 10 December 2007