Summary Sharp clear images 34"-180" projection size with an aspect ratio of 16:9/4:3 Enjoy the bigger screen, protecting your eyes from TV, laptop and smartphone has a unique dual built-in speakers system Easy to adjust focus and make keystone correction Projector HD Portable Home Theater Cinema USB HDMI Multimedia AV Description Description: Sharp clear images but won't cause eyes strain. 34"-180" projection size with an aspect ratio of 16:9/4:3. Best choice for families movie night at home or backyard in no light/low light environment. Enjoy the bigger screen, protecting your eyes from TV, laptop and smartphone. Considerate design for a healthy life. This home projector has a unique dual built-in speakers system, offering excellent loud sound quality without connecting to an external speaker. Easy to adjust focus and make keystone correction. Specifications: Size: About 9.8 * 8.7 * 4.9 cm Material: Plastic Colour: Black Resolution: 320 * 180 Power: 10 (w) Brightness: 10 ANSI Projection drawing size: 10-60 inches Imaging Technology: TFT LCD Input Interface: USB / TF Type: Projector Screen Aspect Ratio: 16: 9/4: 3 Light Source Type: LED Lens Spec: Multilayer Coating Lens Projection Distance: Approx. 0.4-2.5M / 1.3-8.2ft Output Interface: Headphone Color: 16.7M Contrast: 400:1 Support Resolution: 1920 x 1080 Light Source Life: 20,000 Hours Power Input: 5V-2A(1A can not, must be 2A) Mode Of Operation: Manual Model:Portable projector Q&A Q1: can this product be connected to WiFi? A1: No Q2: what should I do if the blue screen appears after connection? A2: this will happen when using pirated data cable. It is recommended to use original data line Q3: there is noise when starting up. What should I do if I turn off the machine automatically after the white screen appears? A3: insufficient current, 5V and 2a are needed for charging head. (1a causes) Q4: how to turn off the black screen automatically? A4: plug problem, smart phone charging head is OK (can't use set-top box charging head) Package Include: 1 x Projector(without remote control) 1 x Instruction Manual 1 x Data Line 1 x AV Cable Note: Operating environment: mobile phone/set-top box/tablet, etc., support USB, TF card It is recommended to use the original data cable