Brand: DellPart Number: CWK91-PRJ-001MPN: 0CWK91, CN-0CWK91Model: 1609WXType: ProjectorForm Factor: PortableDISPLAY:Resolution: 1280x800Native Aspect Ratio: 16:10Image Brightness 2500 ANSI LumensImage Contrast Ratio: 1900:1Image Size: 30 in - 359 inProjection Distance: 3.3 ft - 39 ftAUDIO OUTPUT:Type: speaker(s)Sound Output Mode:monoForm Factor: externalOutput Power / Channel: 8 WattEXPANSION / CONNECTIVITYInterfaces:1x VGA3x DVI1x S-Video2x Audio1x RS-232OPERATION:Lamp Type: LEDLamp Life Cycle: Up to 4000 hour(s) - economic modeMISCELLANEOUS:Features: Built-In SpeakersPackage Included:Projector / Lamp not includedPower Cord