Optical specificationsDisplay Tech: LCDLight source: LED, 30000Hours long life Brightness: 250 ANSI lumensContrast Ratio: 2500:1Resolution: 1280*720 (WVGA) Support to 1080PAspect Ratio: support 16:9Projector Ratio: 1.4:1Project Dimension: 43-150''Project distance: 1.5- 4.5mInterfaceHD x1;USB (USB interface support read Data from USB SSD Hard Drive) x2 ;VGA x1;AV x1;Audio Out (3.5mm Headphone jack)x1AC-in AC90V-240VOthers specificationsSpeaker: 8Omega,3WProjection Mode: Front/ Rear/ Ceiling front/ Ceiling rearKeystone Correction: ManualPower consumption: 70WDevice: 245 x 166 x 81.5mm Weight: 1.29 kgPackage including:1x Projector1x Power Cable (US/EU/UK plug optional)1x 3 in 1 AV cable1x Remote control1x User manualSupport Miracast , Airplay, Multi screen , Mirror Screen, Wireless display for some smartphone/tabletEn comparación con otros proyectores del mismo tipo, el brillo y la claridad de SKY K9 han alcanzado nuevos niveles en productos similares.