... a computer projection display High-efficiency LED lights as a projector light source, the useful life of 10,000 hours or ... usage Built-in high-quality full-frequency speakers, power outposting Projector is turned off to support a separate function, as MP3 ... Projection size from 6 inches to 60 inches or more Projector brightness high, up to 30 lumens Support APE, FLAC, MP3 ...