Actually I would like to comment on the previous two reviews I read after purchasing a 1080p HD portable mini projector. The comments said the projector just beeps and shuts down or just beeps and never works. I think I found the reason why the projector just buzzes and clicks because that's what the projector was doing when I turned it on. If you go to the PRODUCT DETAILS in the brochure that came with the projector, see INTERFACE FEATURES, number 6 in the interface features shows that a 5V-2A input is required when connected to the power supply, my 5V-1. A input was a problem, after switching to the correct input the projector worked fine. This needs to be communicated to customers as I only read the reviews after I ordered the projector and I already had intentions of returning it if I had the same issues as the reviews. I'm very glad I looked at the brochure as I really like the projector...the picture quality is excellent value for money. C Horne
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