The Perforating Acoustically Transparent Fabric Sound Max5 is for front projection, with 0.4 mm hole, which is made of a environmentally friendly PVC. Sound Max5 can meet universal requirement for projection screen because of flexibility and stability. The users can set their speakers behind the screen. It's a ideal choice for the home theater and large cinema, while never produces Morie effect. What's more, its unique coating technology provides high-quality picture so it can vividly present the contrast of image sources.