4K Ultra HD - stunning sharpness, crystal clarity Max screen size of 300 inches - good for public viewing 900000:1 contrast ratio for realistic colours and depth 2 built-in speakers for high quality sound Connect external devices using the HDMI port Grab the popcorn and watch all the blockbusters on the big screen with this projector from Acer. There’s no need to worry about the quality, as you’ll see every detail of the action thanks to the 4K resolution, while the 900000:1 contrast ratio creates a bright, vibrant picture to bring every scene to life. And, it’ll even project your films up to 300 inches to turn your front room into an amazing home cinema, so your friends will be begging you to host a film night. It also comes with 2 built-in speakers, letting you hear everything clearly, and there’s a HDMI port to connect to your Blu-ray player or console.