The sonic glasses take a video feed right in front of you and turn that into a sonic landscape, so as things move around, and get closer and farther, it sounds like "Bzz, bzz, bzz."
Soniske briller optager en videofilm lige foran dig laver den om til et sonisk landskab så når ting kommer nærmere eller fjerner sig lyder det sådan "Bzz, bzz, bzz."