I compared the products of almost 30 vendors before purchasing this projector. The TOPVISION projector is relatively cheap in price, and I think it is easy to carry, and it is very convenient to watch outdoor sports and movies. So I bought this projector. My phone is a Samsung Galaxy S8 so I need to download the "Ez Castโ app first to connect my phone directly to this projector. The brightness is about 2200 lumens, so you can see it clearly in the dark. The contrast ratio is 32-176 inches. I think the most comfortable distance is 2.5m and 90in. Keystone correction and focus can be easily adjusted with the turn of a key. The speakers are built into the projector and the sound quality is good enough for me to watch movies. In short, this projector meets all my home theater needs. There is no question that this price is worth it. Highly recommended.
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