Summary: It is hard to believe the results of this little thing. Obviously it does not produce the quality of image of bigger higher priced projectors, but the image it does produce is clear and hard to beat for the price/size of the projector.
Summary: I love the Optoma PK301. It does what I wanted it to. Provides excellent portability for video and powerpoint presentations. Brightness not the greatest, but better than expected. Video conversion is a bit tricky at first. Learning curve with very poor written instruction manual about video conversion and loading. Must buy micro sd card as internal memory not sufficient for much of anything. Would buy again unless technology outraces this units life.