الوصف

Basic configuration and parameters
1. Wall-mounted structure, sheet metal thickness is greater than 1.2mm
2. When opening the control door of the physical display stand, the air bar will pop up the door and keep it horizontally placed. The A4 size textbook can be displayed on it. The display stand is hidden when the door closed.
3. High integration of multi-functional wireless microphone, multimedia teaching host and physical display stand, stereo amplifier, intelligent central control system, delay shutdown system and speaker as one;
4. Computer configuration: CPU: Intel Core i5 processor, hard disk: hard disk: more than **0G solid SSD *2G, 4G memory, wireless network card (optional). Solid state disk and wireless network card are on-board PCI-E interfaces, and USB or SATA interfaces are not accepted.
5. In response to the national policy of energy conservation and emission reduction, the power of the whole machine is less than **0W;
6. Built-in 2.4G multi-functional wireless microphone can be held by hand or equipped with head-mounted microphone to speak, and different frequency points can be automatically selected to meet the teaching needs of non-interference when used in **0 classrooms at the same time; Multi-function wireless microphone with laser pointer, PPT up/down page function and volume adjustment , wireless control of the computer running up/down PPT pages, and microphone volume.
7. Built-in 2x*0W stereo digital power amplifier adopts DSP digital chip and BLP digital feedback amplification technology, intelligent detection sampling, automatic detection and adjustment of microphone volume gain, automatic search of noise frequency point to complete the suppression of sound feedback. It has power output and audio output interface.
8. built-in delay power off function, when the "power" is pressed, you can leave while the device is directly turned off, no need to wait for the projector bulb cooling for power off, the system will automatically delay *0 seconds after power off.
*0. Built-in physical display platform: shooting size: A4(**0mm***7mm)/ scanning speed: 1 second/resolution: 5 million/image color: *4 bits/image format: JPEG,TIF,PNG,GIF,BMP/ video format: AVI format/interface: USB2.0, No external power/light source: natural light +LED light (service life: ***0 hours)/image control: brightness adjustment, exposure adjustment, sharpness adjustment, color adjustment, gain control, etc. / text recognition: OCR recognition function/can write or annotate the presentation notes directly on the screen or electronic whiteboard.
*1. Device interface: VGA IN*2, VGA OUT*1, HDMI IN*1, HDMI OUT*1, Audio IN*2, Audio OUT*2, USB*6, LAN*1, AC IN*1, AC OUT*1