![]() The Epson Duet Ultra Portable is a true multipurpose projector screen, with the ability to serve as a business presentation tool or as an affordable entertainment screen. Most have different power settings, which gives you some control over how long they’ll last, but in general you should expect to get through one or two movies without much trouble. Battery life: Portable projectors are a battery power balancing act: brightness, speaker size, weight, and resolution all play a part in how much time you’ll get to use them per charge.That said, the speakers are generally smaller, and less powerful because of space restraints, and can add to power consumption. Speakers: All of the portable projectors on this list have built-in speakers, so you don’t have to carry a pair around with you to watch a movie.All of the projectors on our list weigh less than five pounds, and will fit in a backpack, but this is definitely a factor to consider if you’re planning on carrying your projector around a lot. ![]()
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