Portable USB Digital Presenter LED Camera Projector A4 Document Visualizer for Education

Hardware Parameters 1. Lens: 5 million pixels; resolution: ≥ 1200tv line. 2. The arm can adjust the lens to support vertical rotation of 270 degrees, and up and down rotation of 150 degrees. 3. Zoom mode: 22 times optical zoom. 4. Resolution (long press for 3 seconds): 1024 * 7681920 * 10801280 * 1024. 5. Interface: 1 channel for HDMI-input and 1 channel for HDMI output; 6. 1 usb-a interface; 7. VGA interface: input 1 channel, output 2 channels. 8. One RS232 control interface. 9. 1 power input interface, standard power adapter: 12V · u 2A 10. Fill light: 12 LED lights are integrated at the top of the boom to make up light, which is ideal for classrooms without enough lighting; 11. Image stunt: freezing, contrast with the screen, brightness adjustment, zooming in and out, can be controlled by the buttons on the panel, and the buttons have a prompt tone.