Technology type: Single-chip LCD projection technology Physical resolution: 1920*1080 Maximum compatible resolution: 1920*1080 HD 1080P Brightness: 350 lumens Contrast ratio: 1000:1 (Display ratio) Aspect ratio: Original 16 :9, compatible with 4:3 Displayable colors: full true color (1.67 million) Projection method: front and rear projection Focus method: manual focus Keystone correction: 15 Projection size: 45-300 inch Projection distance: 1.8M-5M Bulb: 150W LED bulb Lamp life: more than 30000 hours Video: 1 x AV, 2 x USB, 2 x HDMI, 1 x VGA, 1 x Audeo output Speaker: 4 5W*2 independent sound cavity Audio::*1x Audio Standard Accessories:: Remote Control, Manual, Power Cord, AV Cable, HDMI Cable OSD Menu Language: Chinese, English, Russian, French, Spanish, Portuguese, German, Arabic, etc. Dimensions: 310*236*115MM Net weight: 2.5kg Packing size: 405*170*280mm Carton size: 710*415*290mm Gross weight: 4.2kg QUANTITY: 4 pcs/CTN power supply: AC110-250V 50-60HZ Total power: 160W Operating temperature: 0-40C / 32-104F (0-1500m) Operating humidity: 20-90% RH Storage condition: 20-90% RH Product color : white, black Warranty period: one year warranty includes the whole machine and bulb Applications:: high-end electronic gifts, family education, business people, etc.