The projector can be set to be more quiet, you just need to set profile to movies, and the fan noise will be reduced to 28 dBA. A device is incredibly light and small. ASUS P1 has its own battery, but has an external power supply, which is very similar to that of laptops. Projected image is great!
https://www.asus.com/images/award_logo/1334/7798.jpg
MOJ MIKRO