The portable S1 LED Pocket Projector from ASUS is optimized for viewing video content from a mobile device or giving presentations on the go. It features a 200 lumen RGB LED light source that is sufficiently low power it can run off its 3000mAh internal battery for up to three hours at the lowest brightness setting of 50 lumens. The projector's 0.3" DLP imaging device produces a WVGA (854 x 480) resolution picture, a 16:9 format that will show HDTV content without cropping or distorting the image. There is also a "Square" mode for SD video or pictures, and it can be set to Auto letting the projector choose the format it considers best for you.
To receive video there is a standard HDMI input which has MHL (Mobile High-Definition Link) support for use with smartphones and other mobile devices with MHL outputs. To ensure the mobile device feeding the video won't run down there is a USB type power output that it can be connected to.