Product Features:
Adopts the UHF ultra-high frequency band, which features less interference and more reliable transmission compared to the traditional VHF band. It supports dual-channel signal reception, with 100 selectable channels per channel, and is equipped with IR infrared automatic frequency matching function; suitable for various conference and speech occasions.
Each channel is equipped with independent electronic volume control, featuring 31-level electronic volume adjustment per channel. Signals are transmitted in the UHF band with a 250kHz frequency step, and frequency matching is performed via infrared.
Equipped with a screen lock function operated through function combination keys. Audio and data transmission adopts dedicated pilot signals and ID codes, effectively preventing crosstalk and interference.
Features a one-click frequency search function to intelligently locate interference-free frequencies. Each channel is equipped with antenna diversity, which automatically indicates the current antenna status for enhanced anti-interference performance.
Transmits signals in the UHF band with a frequency range of 640–690MHz. The LCD screen displays the working channel, operating frequency, received signal, and audio signal.
The receiver is fitted with two rubber receiving antennas on the rear to enhance signal reception and features an elegant appearance.
Equipped with 2 balanced outputs and 1 mixed unbalanced output on the rear, plus 1 mixed balanced output, suitable for connecting various external devices.
Built-in AI voice control: supports control of power supply, lighting, LED screen power, video switching, volume, and conference status light panels at the entrance, with voice feedback.
Supports voice control via lavalier microphones and external omnidirectional microphones, features anti-misoperation wake-up, and supports 1 channel of monitor output.
Built-in control ports including 1 power sequencer port, 1 lighting control port, 1 conference light panel control port, 1 LED screen control port, 2 RS-232 ports for volume and video switching control, 1 group of voice feedback monitoring, and 1 line input. Wake word: Conference Secretary; response prompt: Yes, please speak. Increasing volume raises the level in 1dB steps.
Built-in 3W cavity speaker, supporting voice control for power on/off.
Simultaneous display of frequency and channel. Both the receiver and transmitter show battery status, with low battery reminders and automatic muting when power is exhausted, effectively preventing noise caused by power failure during use.
The microphone consumes 80mA, powered by two 1.5V batteries, supporting over 6 hours of continuous use.
Operating distance: 60 meters
Receiver Parameters
Oscillation Mode: Phase-Locked Loop (PLL) Frequency Synthesis
Frequency Range: UHF 640–690MHz (UHF 624.2MHz–673.95MHz; CH1: 624.2–648.95MHz, CH2: 649.2–673.95MHz)
Frequency Stability: ±0.001%
Modulation Mode: FM
Signal-to-Noise Ratio: >105dB
Distortion: <0.5% @1kHz
Frequency Response: 65Hz–18kHz ±3dB
Sensitivity: 1.2μV @S/N=5dBμV
Power Supply: DC 12V–17V
Audio Output: Independent 0–400mV; Mixed 0–300mV
Transmitter Parameters
Power Supply: DC 3V (2×1.5V AA batteries)
Microphone Current Consumption: 100mA
Carrier Frequency: UHF 640–690MHz
Frequency Stability: ±0.001%
Maximum Frequency Deviation: ±30kHz
Signal-to-Noise Ratio: >60dB
Adjacent Channel Rejection Ratio: >80dB
Dynamic Range: ≥100dB
Type: Condenser
Polar Pattern: Uni-directional
Frequency Response: 40Hz–20kHz
Microphone Sensitivity: -43±3dB @1kHz
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