1Built-in compound diaphragm loud speaker, creating a broad auditory sound effect. 2HD image processing reduces the sense of sawtooth, the picture is smooth and clear, and the details are more outstanding. 3Diffuse reflection imaging care eye health, even if long-term viewing, will not feel visual fatigue, a health movie-watching method for your family. 4The double vortices fan system has high power and high efficiency, the turbo circulating air flow has hidden heat dissipation design, the system fully optimizes the air duct curve, enhances the heat dissipation effect, and ensures the system to run stead 5Rich extension interfaces, support access to game host. Support dual USB, HDMI, VGA/ headphone interface, AV, KTV equipment, audio equipment and so on, meet the needs of projector enthusiasts.Features: 1. Built-in compound diaphragm loud speaker, creating a broad auditory sound effect. 2. HD image processing reduces the sense of sawtooth, the picture is smooth and clear, and the details are more outstanding. 3. Diffuse reflection imaging care eye health, even if long-term viewing, will not feel visual fatigue, a health movie-watching method for your family. 4. The double vortices fan system has high power and high efficiency, the turbo circulating air flow has hidden heat dissipation design, the system fully optimizes the air duct curve, enhances the heat dissipation effect, and ensures the system to run steadily and smoothly. 5. Rich extension interfaces, support access to game host. Support dual USB, HDMI, VGA/ headphone interface, AV, KTV equipment, audio equipment and so on, meet the needs of projector enthusiasts. 6. Supporting 23-languages: Czech; Chinese; English; Danish; German; Spanish; French; Croat; Italian; Hungarian; Dutch; Norwegian; Polish; Portuguese; Russian; Romanian; Slovenian; Serbian; Finnish; Japanese; Korean; Slovak (Japanese and Korean languages require separate flashing software). Specification: Condition: 100% Brand New Material: ABS Physical Resolution: 800 * 480 Luminous Flux: 1500 Contrast Ratio: 1000:1 Screen Scale: 4:3/16:9 Projection Ratio: 1.4:1 Trapezoidal Correction: 15(manual) Lamp life: >30000H Transfer Box Size: 570*300.2*410MM Operation Mode: Manual & Remote Operation GPU: Mali-400 MP, Two Cores Storage Space EMMC: changed to 16GB by software(Actual 8GB) Network Parameters: support wireless Network Video maximum support: 1920 * 1080 Picture: universal picture ROOT: does not support Projection Technology: LCD Support Maximum Resolution: 1080P Support Color Number: 16770K Projection Size: 32-150inch Projector Distance: 0.8M-3.8M Optimum Projection Distance: 1.2-2M Whole Power: 50W-60W 3-D Support: Support Red & Blue 3-D Working Temperature: -10 to + 35, Humidity 10%-90% RH no condensation Operating System: for Deep Optimization forAndroid 6.0 CPU: MSD6A358 Cortex-A35 four-core 64-bit main frequency 1.3-1.7 GHz Run Memory RAM: Changed to 2GB by software(Actual 1GB) Bluetooth IEEE: 802.11b/ g/ n; Bluetooth standard; BT4.