The Aeon CineGrey 4D AT is an acoustically transparent EDGE FREE® fixed frame screen with ambient light-rejecting technology. It is perforated to allow speaker placement behind the screen to allow sound to breathe through while producing outstanding imagery in dark or bright room environments. The screen material is wrapped around the frame which enables it to have a flat and taut permanently tensioned front projection surface. An LED kit is available and sold separately. Elite Screens offers High-quality projector screens for home cinemas, meeting rooms and for on the go. Hochwertige Beamer Leinwände und projektionsleinwand für die Heimkinos und die Meetingsräume.