Warranty: All Excelvan projectors have 1 year warranty 100% satisfaction and zero hassle returns guaranteed.</br>SPEC: 800x480 pixels native resolution with brightness of 1000 lumens support 720P 1080P wide range power supply AC 110V-240V 50/60HZ.</br>Distance: Manual focus adjusting get picture from 37 to 130 inches at 1.2 to 3.8m.</br>Suitable: For high definition home theater private theater business presentation multimedia teaching KTV.</br>Connect: For iPhone or iPad need an original Apple AV composite cable (Not included). For android phone that support MHL a MHL cable (Not included) is needed.</br></br>Product Description</br></br><b>Does it play 3d videos?</b><br> ?Just support red-blue 3d need download the red-blue 3d sources and with red-blue 3d glasses.<br><br> <b>Picture on the screen is not clear?</b><br> vAdjust picture sharpness manually by rotating the lens;<br> wProjector and screen need to keep a certain distance about 1-1.2m;<br> xUse the HD source;<br> yFor computer connection please make the resolution of computer monitor as the same as the projector.<br><br> <b>Features:</b><br> ?Sealing design and high-efficiency cooling channel.<br> ?Optical keystone correction function?? adjust keystone distortion images.<br> ?LED lamp with life up to 20??000 hours?? more beautiful colors and abundant details.<br> ?Image aspect ratio can be switched from 16:9 and 4:3.<br><br> <b>Specification:</b><br> ??Technology Type: TFT- Single LCD Panel + LED Technology<br> ??Resolutio