SM-3620C Digital Wireless Video Tracking Touch-Screen Conference System Chairman Unit

Features a professional high-fidelity condenser microphone capsule for sensitive pickup and clear voice transmission;

Utilizes UHF wireless transmission technology (50m indoor / 90m outdoor effective range) with anti-electromagnetic interference circuitry to eliminate disruptions from mobile phones and other electronic devices, ensuring stable signal performance.

Features a 2.4-inch high-brightness IPS TFT display for real-time visualization of microphone status, battery level, and speaking volume;

Dual-color LED ring on microphone head (red for active speaker / green for request), intuitive touch switch (green for standby / red when pressed), and side mechanical volume control for effortless operation;

Built-in high-performance lithium battery with Type-C charging port for simultaneous use and charging. Ultra-low power consumption delivers ≥8 hours of continuous speaking time and ≥12 hours of standby time for extended endurance.

Supports speaking time tracking and service requests (refreshments/paper/pen/assistance) to meet practical meeting needs;

Chairperson unit features priority functions to approve speaking requests and fully control meeting order, balancing flexibility with structured management.

Category:

Key Features:

1. Professional high-fidelity condenser microphone capsule for sensitive pickup and clear voice transmission;

2. Dual-color indicator ring on microphone head: solid red when unit is speaking, solid green when requesting to speak;

3. Sensitive touch switch: solid green when idle, solid red when pressed;

4. 2.4-inch high-brightness IPS TFT display provides clear visibility of microphone status, channel address, battery level, unit parameters, date/time, and speaking volume for real-time operational monitoring;

5. Microphone incorporates speaking time tracking functionality;

6. Side-mounted mechanical volume control switch for independent adjustment of microphone speaking volume;

7. Speaking units can request services such as refreshments, paper/pen, or assistance;

8. Electromagnetic interference (EMI) resistant circuit design eliminates interference from mobile phones and other electronic devices;

9. Utilizes UHF wireless technology for audio and control signal transmission, with effective communication range: 50 meters indoors, 90 meters outdoors;

10. Built-in high-performance lithium battery with Type-C interface for simultaneous charging and operation;

11. Ultra-low power circuit design ensures continuous speaking time of ≥8 hours and standby time of ≥12 hours;

12. Chairperson unit features delegate speaking approval functionality;

13. Chairperson unit possesses priority control over meeting proceedings.

 

Technical Specifications:

Operating Voltage: DC 3.7V — 4.5V

Power Consumption: Standby: ≤350mW, Talk Mode: ≤620mW

Display: 2.4-inch 320×240 IPS TFT

Operating Time: 8-10 hours

Operating Temperature: -9°C — 40°C

Dimensions (L×W×H): Base: 101.7×148×56.5mm

Square Tube (F-MG02): 227×35×31mm

Square Tube (F-MG03): 220×34.5×24mm

Gooseneck Microphone Tube: 420mm

Weight: Base: 0.68 kg

Square Tube (F-MG02): 0.35 kg

Square Tube (F-MG03): 0.31 kg

Gooseneck Microphone Tube: 0.07 kg

 

Audio Signal

Transmission Method: UHF Wireless (One-Way)

Number of Channels: 6

Transmission Band: UHF 512-945MHz

Demodulation Method: FM

Sensitivity: -90dBm

Maximum Modulation: 60K

Radiated Power: ≤+9dBm

Frequency Deviation: <0.002

 

Control Signal

Transmission Method: UHF Wireless (two-way)

Number of Channels: 20

Transmission Band: UHF 423-436MHz

Modulation Method: FSK

Sensitivity: -90dBm

Radiated Power: ≤+7dBm

Frequency Deviation: <0.003

Data Rate: 110KBPS