Special feature Built-In Speaker, Automatic Keystone Correction, Auto Obstacle Avoidance, Auto Focus, Built-In Cooling System Built-In Speaker, Automatic Keystone Correction, Auto Obstac… See more. 【LOW NOISE & LONG LAMP LIFE】 - The bedroom projector has efficient cooling and noise reduction systems ensure a quiet operation, it is built with a consumption-saving led lamp to extend its useful life to 50,000 hours.
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