. The ZH403 is a compact Full HD laser projector. Designed for maintenance-free continuous operation it can be installed in virtually any orientation. Its small and lightweight footprint 1.3x zoom combined with 360-degree and portrait projection make it a breeze to installKey Product Info . Dust resistanceFull HD resolutionSuperior contrastAmazing colorFour corner correction Product Features Dust resistanceOutstanding dust resistance combined with exceptional brightness ensures incredible durability; paramount for 24/7 maintenance free operation in challenging environments. Full HD resolutionFull HD resolution gives you sharp and detailed images from HD content without downscaling or compression; perfect for watching Blu-ray movies HD broadcasting and playing video games. Superior contrastAdd more depth to your image with a high contrast projector. Compared to competing technology Optoma projectors provide you with brighter whites and ultra-rich blacks images come alive and text appears crisp and clear - ideal for business and education applications. Amazing colorOptoma projectors provide reliable color performance suitable for any content and environment. From accurate sRGB colors for lifelike images to vibrant punchy presentations. Four corner correctionAdjust the keystone in both the vertical and horizontal plane. You can individually warp each corner of the image to create a perfectly square image. Ideal for image stacking uneven walls or where projector placement is awkward and needs to be installed at an angle.