Features: 1. High-speed picture: no smear, through a specific frame insertion algorithm, high-speed sports pictures such as ball games and drag racing movies, erase projection and jitter, and maintain the delicate and shocking picture quality. 2. Built-in composite diaphragm speaker: built-in independent cavity audio high-quality speaker. 3. Safety and no eye damage: using LED light source, diffuse reflection imaging non-direct light source, let children turn it on, parents can rest assured. 4. New design: short-focus optical lens, which can focus at a distance of 50CM, and adds image edge distortion correction to improve image uniformity. 5. Built-in small cavity; ultrasonic welding process, small volume also has a loud effect. Specifications: Size: 110 * 90 * 50 mm Color: black,white,yellow(optional) Imaging technology: TFT LCD Physical resolution: 320 * 240 Light source type: LED Focusing: Manual Projection distance50-300cm Screen aspect ratio: 16:9 / 4:3 Input port: AV, USB, TF, 5v-2a Output port: Headset Color: 16.7M Support resolution: 1920 * 1080 Light source life: 20000 hours Power: 18W (max) Adapter: 12v1.5a Operation model: manual / remote control Projection size: 16-100 inches Speaker: 4 3W Package Included: 1*Projector 1*cable 1*Power cord 1*User Manual Notes: Notes: 1. Please allow 0-1 inch error due to manual measurement. Thanks for your understanding. 4. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from real object.