Main Features:Built-in lens design, more beautiful colors and clearer images. Compared with other products, our brightness has increased several times, and the colors and details are more natural and delicate. Higher contrast makes colors more vivid. Home projector includes HDMI, 2*USB, VGA, AV, SD and audio output. It is compatible with TV boxes, PCs, laptops, tablets, SD cards, Blu-ray DVD players, USB flash drives, video games, media players. High-definition stereo speakers can provide clear and powerful sound. You can also connect an external speaker with 3.5mm audio output for better sound. To reduce noise, we are equipped with the latest dual fan system to provide better performance and an immersive audio experience.Specification:Processor: Mstar v53Projection Technology: LCDBulb Type: LEDResolution: 1280*720Brightness: 120 LUX ANSI lumensScreen ratio: 4:3/16:9Number of supported colors: 16.77 million colorsContrast: 2000:1Lamp life: 30,000 hoursProjection size: 32-176 inchesProjection distance: 1-5.2MThrow ratio: 1.4:1Keystone correction: 15(manual)Speaker: 1 x 8R 2WNumber of cores: 4Bluetooth: YesWIFI: YesBattery: NoneRemote control receiver: IRx2Machine power: 48WPort: USBx2/SD/AV/VGA/HDMI-in 3.5mm Audio out