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QPT-236, a portable projector, consists of a 250 g body and a detachable battery of 3.5 hours. With 100 lumens and 60 projecting range at the maximum, it can be used with battery when electric connection is unavailable or without battery when electric connection is available. Due to the built-in 8 GB memory, users can do instant sharing even without being linked to a computer. The keypad area is curved out directly on the metal surface, cleverly defining function icons and reducing tooling numbers, which achieves cost-saving and environmentally friendly objectives. It uses aluminum alloy to solve thermal and noise problem instead of traditional fan.