Our HD projector is the first projector with± 50 ° 4D (vertical & horizontal) keystone correction function to ensure the projected image is always a standard rectangleThe projector with a real native resolution of 1920*1080, remarkable 7200L bright, and a high dynamic contrast ratio of 10000:1, provides sharp and detailed images from HD content without downscaling or compression, which is four times higher than 720p. Combining an innovative high-refraction 5 layers glassed lens, ensuring the best video experienceThe Y30 LED projector has built-in 3W dual stereo speakers with SRS sound system that provides a great auditory sense experience without external speakers. Updated an advanced and silent cooling system with 3 fans running simultaneously. Adopt the latest SmarEco technology to minimize lamp power consumption to extend the useful life of the lamp to a maximum of 100000 hours.The video projector offers the projection size from 45" to 200" depending on the distance (1.5 - 5.5 meters) and 3m is the recommended viewing distance. Equipped with 2*HDMI ports, 2*USB ports, VGA port, AV port, this projector easily connects with TV box, Amazon Stick TV, Chromecast, PC, laptop, tablet, external speakers, PlayStation, Xbox, DVD player, card reader, USB stick, media players, iPad, iPhone, Android smartphone.This 1080P projector is very suitable for home movie entertainment, backyard, games, and party fun. YABER provides 6-month back and 3-year repair, lifetime professional technical support. Notice: jerky or lag when playing videos is not a quality problem and can be solved by firmware upgrade.