The viewsonic pled w800 is an ultra portable led projector with 800 ansi lumens and wxga 1280x800 native resolution with a compact lightweight design a 5v usb charging port and over 30 000 hours of usage time this projector is ideal on the go presentations an mhl enabled hdmi input allows users to present directly from compatible mobile devices as well as from wireless hdmi dongles such as google chromecast it also features a sd card slot usb a reader port and optional wifi or miracas