PVC screen with gain 2.5 for brighter, clearer images. The black lining on the back reduces light interference for a distraction viewing experience. 178degree wide viewing angle with a matte white surface. This design allows comfortable seating from different positions and reduces crowding in front of the screen. Supports 4K, HD, and 3D image quality projection. Compatible with all frontfocus projectors. Image formats supported: 16:9 and 4:3. 16:9 delivers a home theater experience, while 4:3 is suitable for teaching, computer screen projections, meetings, web pages, and presentations. Color reproduction provides immersive image quality. Portable and retractable design. The screen is lightweight and can be easily rolled up to save space, making it practical for indoor use, outdoor viewing, and travel. Two to three practical use scenarios: Home theater or family movie night: enjoy bright, clear images with wide viewing angles for comfortable seating from anywhere in the room. Classroom or meeting room presentations: use 4:3 for teaching or screen sharing, or 16:9 for a cinematic presentation and video content. Outdoor or travel viewing: roll up and take the screen on trips or set up a quick outdoor movie screening with minimal setup.