Receiver specifications
Frequency Range: UHF 640-690 MHz
Frequency Stability: ±0.05%
Dynamic Range > 90 dB
Modulation Method: FM (Frequency Modulation) / PLL (Phase-Locked Loop)
Frequency Response: 50Hz - 15KHz
Signal-to-Noise Ratio/S/N: ≥90dB
Adjacent Channel Interference Ratio/F/N: >80dB
Image Interference Ratio/P/N: >80dB
Application Range: ≥60 Meters (Open area with no interference in ideal conditions)
Receiver Power Supply: DC 13.5V-15V
Handheld
Transmitter specifications
Carrier Frequency: UHF 640-690 MHz
Frequency Stability: ±0.01%
Maximum Deviation: ±45 kHz
Harmonic Radiation: <-63 dBm
Signal-to-Noise Ratio: >105dB
Dynamic Range: ≥100 dB
Transducer: Dynamic Driver
Frequency Response: 50Hz - 15KHz
Distortion: >0.5%
Power Supply: DC 3V AAA*2
Key Features:
A dual U-section wireless infrared frequency-matching wireless microphone with 200 frequency channels (100 each for left and right).
Lock Screen Function Operation:
Turn off the device, then hold the left UP key while turning it on. The screen will lock, and all keys except the power button will be unresponsive. To unlock, repeat the operation to unlock the screen, and all keys will be functional again.
High-sensitivity pickup operation:
Hold the microphone and press the power button without releasing it to enter the sensitivity adjustment interface. 1.2.3.4.5 are adjustable; the higher the number, the higher the sensitivity. Press the button once to change a number. Release after adjusting to the desired number; the display will flash a few times to save the setting, and then it can be used normally. Adjust the sensitivity away from the speaker to avoid feedback. Normal adjustment to 3-4 is sufficient, with a pickup distance of about 50CM. To prevent users from losing the settings, the handheld device will return to factory settings after being turned off and then back on. The adjusted sensitivity will not be saved after the device is turned off. The sensitivity adjustment feature can be used as a lecture microphone or a meeting microphone during speeches or temporary meetings. As a dynamic microphone, its performance is no less than or exceeds that of lecture and meeting microphones.
