OVERVIEW: Built-in Harman Kardon Stereo speaker for superior sound quality: 1080P native resolution for full HD image display: Support up to 4K ultra HD image display: Auto focus function for clear image display: 1350 ANSI lumen brightness for full color: Maximum 300 inch projection size for home theater: Motion compensation for stable display of dynamic images: Automatic electric Lens cap for convenient use and preventing scratch: 1.2:1 projection for larger size projection in relative...