1. Projection technology: DLP 2. Adjustment function: manual focus adjustment 3. Drop screen size: 30 inches-300 inches 4. Display scan frequency: 67.10Hz 5. Power supply: 5V 3A 6. Operating system: Android 9.0 7. Optical machine: DLP (0.2 DMD) 8. Resolution: WVGA 854 x 480 9. Image size: 33.5 1m 10. Keystone correction: horizontal side projection 40 degrees, vertical 45 degrees, four corners adjustment 11. Main chip: Quad-core ARM Cortex-A55 CPU 12. Processor: ARM Mali-G31 MP2 GPU 13. Running memory: 2GB4GB LPDDR4 14. Read-only storage: 16GB32GB EMMC 15. WiFi: 2.4G5G 802.11abgnac 16. Bluetooth: 5.0 17. Video decoding: H.265 HEVC 4K x 2K 60fps 18. Videopicture format: mkvwmvmpgmpegdatflv, avimovisomp4rmvbjpg 19. Same screen mirroring: EshareiMirrorMiracast 20. Remote control: support infrared remote control 21. Charging port: MICRO USB input: DC 5V 3A&OTG 22. HD input: HD input 1.4 23. Headphone port: 3.5mm audio output 24. TF card slot: maximum support 32GB 25. Built-in battery: 4500 mAh lithium battery 26. Remote control battery: AAA battery x 2 (delivery without battery) 27. Product size: 8 x 8 x 2.8 cm 28. Weight: 600 grams packing list: -Projector x 1 -Infrared remote control x 1 -Tripod x 1 -HD cable x 1 -Power adapter x 1 -User manual x 1