1. WiFi transmission technology and strict digital protection ensure the privacy of the meeting and avoid eavesdropping and malicious interference;

2. Uncompressed audio transmission technology, 48K sampling rate, 20Hz-20KHz bandwidth, perfect sound quality;

3. Low delay technology is adopted, and the minimum output from microphone sound to power amplifier is 10ms;

4. Support 20 hours of continuous speech or 26 hours of static standby;

5. Built in internal magnetic speaker;

6. Cooperate with HD camera tracking host and HD infrared automatic camera to support mobile tracking;

7. Support FIFO, apply and normal conference modes;

8. Support Chinese and English display;

9. Wide viewing angle and high contrast 128 * 32 OLED provides clear display of check-in results, voting results, volume, microphone status and other information;

10. The battery is detachable and powered by dual batteries. Replacing the battery can ensure that the unit will not be powered off and will not affect the normal meeting;

11. The chairman unit has priority function and can close all representative units that are speaking;

12. The chairman unit can initiate and end sign in;

13. Three voting methods are supported:

a) Voting method: affirmative / abstention / objection;

b) Election method / investigation method: 1 / 2 / 3 / 4 / 5;

c) Response method / comment method: -, -, 0, +, + +.