[720P HD Projector] TRANSJEE A4300 PRO video projector has 1280 x 720P native resolution, supports 1080P and 4000:1 contrast ratio and 4600 lumens can provide ultra sharp and vivid video quality. Very suitable for projecting movies, games, presentations and graphics. [Large Screen Size Experience] Provides viewing sizes from 45 inches to 200 inches, and the projection distance is between 5 feet and 15 feet. The recommended viewing distance is 6.6 feet. [Dolby Atmos Support] The TRANSJEE A4300 PRO projector has a built-in powerful speaker and supports Dolby Atmos (Dolby Surround 7.1), which can provide clear sound to meet your daily needs, such as playing movies, pictures and games. [Multimedia Device Support and Lifetime Customer Service] The smart projector is equipped with multiple interfaces, such as HDMI, USB, AV, VGA and earphones, through headphones, laptops, DVD / VCD players, speakers speakers, USB disks, computers, PS3, PS4 and so on can meet your various needs. Image technology: LCD Resolution: 1280x720 Brightness: ANSI 4600lm Contrast ratio: 4000:1 Light uniformity: 95% Screen aspect ratio: 4:3/16:9 Projection aspect ratio: 45 -200 inch Projection distance: about 1.38 ~ 5.7 m / 4.5 ~ 18.7 ft Recommended screen size: 60-100 inch Keystone correction: 15 vertical (manual) Lens correction: correction manual Projection mode: up and down, left and right Support CPU (chip): suitable for mstar 66a358 Display Wi-Fi (wireless on the same screen): yes Digital: Dolby Surround 7.1 Maximum resolution supported (supported maximum decoding): 4k Operating voltage: 250v DC input Remote control: 2 AAA batteries (not included) System: Android 6.01