Excellent Viewing Experience: 1920*1080P native resolution (4K support), compared with ordinary projectors, the brightness is increased by 50%. The completely dustproof design prevents black spots on the projected image. The projector can deliver the sharpest detailed images and vivid videos. It's a high quality and cost-effective choice for indoor or outdoor activities that the projected image is always a standard rectangle. It is very convenient to use the remote control to adjust the screen Wide Compatibility: The projector is compatible with TVs, Amazon Fire Stick TVs, Chromecasts, PCs, Laptops, Tablets, U disks, iPads , smart phones and is ideal for home entertainment Huge screen size and 50000 hours of lamp life: any viewing size from 30 inches to 200 inches, viewing distance from 5 feet to 15 feet, the best viewing size viewing is an 80 inch screen. Equipped with upgraded TFT LCD light source technology to ensure lower power consumption and longer life. Conventional Bulbs Cancellation Dual Stereo and Fan Noise Cancellation System: VIVIBRIGHT projector has built-in two 10W stereo speakers, which can achieve excellent hearing sensing experience without external speakers. Updated the innovative cooling system, which includes heat dissipation and noise suppression technology, which can reduce fan noise by half Projection system: LCD + LED LED highlights: 70W, color temperature 18 K Physical resolution: 1920 x 1080 pixels Brightness: up to 4500 lumens LED Image distance / size: 1.5cm ~ 600cm / 50" - 200" Aspect ratio 16:9/4:3 Ratio contrast ratio with dynamic: 15000:1 Display color: 1.07 billion colors Lens: F=180mm / glass coating Focus adjustment: manual Keystone correction: manual / 40 (vertical) Projection: 1.33:1 Resolution Support: HDMI to 4K (3840 x 2160) HDTV Compatibility: 480i, 480P, 576i, 576P, 720P, 1080i, 1080P, 2160P Horizontal Frequency: 15K~135KHz Vertical Scan Rate : 23~120Hz Built-in Media Player: Yes Media Viewer: Desktop/Video/Photo/Audio Main Chip: Msta r V56 Stereo speaker: sound bar inside (2 x 10 watts) Video formats: RM / RMVB / AVI / MKV / WMV / MP4 / VOB Audio formats: MP3 / WMA / AAC Picture formats: JPEG /BMP/PNG/GIF Source Power: AC 100~240V 50/60Hz