Physical Resolution: 800*480 pixels, Full HD (1080p) compatible Brightness: 2000 Lumens (150 ANSI Lumens) Contrast Ratio: 1000:1 Lamp: RGB LED lamp, lamp life more than 30,000 hours Throw Ratio: Based 1.38:1 Projection Size: 35~170 inches, Distance: 3.93~18ft (Suggest 60-100 inches) Keystone:  ±15° (vertical) Manual Keystone Correction Color Support: 1.07 billion Built-in stereo speakers-4Ω, 3W with SRS sound Noise: about 30-48 dB OSD Menu: 23 country languages I/O: VGA/AV/audio x 1; HDMI/USB input x 1; USB out 5V x 1; SD card Slot/ATV (Optional, default no) Voltage: 90~240V/50~60Hz Product Certification: CE/FCC