1. Projection distance: about 0.8-4m 2. Projection size: 30-200 inches 3. Contrast ratio: 1000: 1 4. Light source type: LED 5. Lumen: 200ANSI 6. Supported video resolution: 4096 x 2160 7. Keystone correction: automaticelectronic keystone 8. Focus technology: manual focus 9. Imaging technology: LCD 10. Bluetooth: 5.0 11. Power: 40W 12. Display color: 160,000 colors 13. Wireless network: WiFi6 14. Memory + storage: 1G+8G 15. Projection display ratio: 4: 3 16: 9 16. Projection ratio: 1.21 17. Display resolution: 1280 x 720 18. USB interface: support USB and mobile hard disk 19. AUX audio interface: eadphone and speaker interface 20. Projection mode: front projection, rear projection, ceiling projection, ceiling projection 21. Voice selection: 32 languages including Chinese, English, Russian, Korean, Japanese, etc. 22. Input interface: connect to computer, set-top box, game console, etc. 23. Accessories: user manual, remote control (powered by 2 AAA batteries, batteries not included in shipment), power cord, power adapter 24. Size: about 18.2 x 11.5 x 10cm Features: 1. Portable, easy to store, and can also be used for outdoor camping 2. 360-degree rotating high gimbal design, can be projected at any angle 3. Automatic four-corner trapezoidal correction, ceiling and wall can be projected at will, and you can watch it while lying down 4. Built-in WiFi module, support 2.45G dual-band, HD video playback is also smooth 5. Support different countries languages to switch at will 6. Built-in full-band surround sound speakers for immersive viewing 7. Small screen with big screen presentation, supports wireless screen projection from mobile phones 8. Low noise operation, does not affect sleep 9. HDMI+USB+AUX interface, supports multiple devices 10. Supports OTA remote upgrade 11. 200 lumens brightness output, high brightness, 130-inch large screen is also bright, c