Buy from Amazon : http://www.amazon.com/gp/product/B00OB8TGKC?tag=scratchandsti-20

Aketek Multimedia USB AV HDMI VGA Home Theater LED Digital Video Game Pico Mini Projector(Gold)

Small and light easy to be carried and installed
Low power consumption echo-oriented
High Resolution 320x240 support 1080p
The professionallatest design for ventilation has largely improved the stability and life time for the projector
Manual focus adjusting get picture from 20-80 inch