For an entry level projectors would recommend Lightweight, the compact projector like that of RICOH PJ WX2240 lightweight and compact projectors combine all the advanced functionality, reliability and value for money you expect from Ricoh.
While small, these projectors pack a big punch with 3,100 lumens brightness, high contrast levels, and long lamp life. Designed to be durable and simple to use, these versatile projectors are easily carried for set up in any convenient location.
The remote control makes operation easy and the wide choice of interface connections including HDMI allows input from a range of devices for maximum flexibility. http://www.loveprojector.com/
Main features should be like:
Lightweight, compact and easily carried for convenient location
Durable with long lamp life up to 6,000 hours in eco mode
Bright, high contrast resolution for clear presentations
Simple operation with remote control for convenient use
Wide selection of interfaces for versatile choice of device input