The DH559ST is featurerich and capable of creating a 100inch screen from a distance of only 1.5 metre The DH599ST projector is capable of delivering a 100 inch full HD image from a distance of only 1.5 meters. The short throw lens is complemented by 3,000 ANSI lumens brightness and 15,000:1 high contrast ratio ensuring a sharp image even in well lit meeting or living rooms of all sizes. Other key features include MHL compatibility for streaming of video and audio content from a compatible mobile device, and a built in 2watt speaker, audio in and audioout ports