480 * 360 pixels resolution, supporting 1080P decoding, accessing clearer images and more realistic color videos Up to 80 inch screen size to meet diverse needs, even in small rooms, you can enjoy a large screen Diffuse reflection image,non-light ray, lion eyelid LED light source. Long-time viewing without easy fatigue Built-in speaker, no need for external speakers for watching movies or playing games. Independent speaker cavity design and improved sound performance80-inch A new generation of constant temperature fan design ensures stable operation of the system. The fan runs quietly and emits less than 30 decibels of noise Five image modes, easily choose the best projection for different content and environment HDR high dynamic display technology brings better contrast between light and dark, showing a more natural, realistic and vivid picture,allowing users to see more details Specifications: Light source: LED Brightness: 20 ANSI Interface: USB/HD/TYPE C/AV/DC/IR/HEADEST Image format: JPEG/BMP/PNG Video formats: SDTV (480i, 576i)/EDTV (480p, 576p)/HDTV (720p, 1080i, 1080p), NTSC (M, 3.58/4.43 MHz), AMIGO (B, D, G, H, I, M, N) SECAM (B, D, G, K, K1, L) Audio formats: MP3, WMA, MP2, OGG, AAC, M4A, MA4, FLAC, APE, 3GP, WAV Power supply voltage: 100-240V 50/60Hz Internal speaker: 8Ω, 1.5W x1 (SRS audio technology) Product size: 12.7 * 8.15 * 4.85 cm Portable power supply: power bank (9V, 2A)