Technical parameters:
Mute control: lock noise
Frequency deviation: ± 18kHz
Frequency response: 80Hz-15kHz
Frequency stability: ± 0.005%
Signal to noise ratio: >70dB
Distortion: <0.5% (1kHz)
Number of channels: quad channel
Sensitivity: -80dBm
Distance: effective range 50 m
Harmonic interference ratio: ≥ 50dB
Illusion interference ratio: ≥ 80dB
Receiver power supply: DC 12V-500mA
Transmitter power supply: 9V battery (TC-TD)
AA1.5Vx2 battery (TC-TL)
AAA1.5Vx2 battery (TC-TH)
Transmit power: <10mW
Frequency values: Orange: 268.9MHz
Blue: 240.9MHz
Red: 250.3MHz
Green: 221.3MHz
Output mode: separate and mixed automatically select

Suitable occasion: sing karaoke OK, program host, outdoor activities, interviews, radio, outdoor activities, and conduct small meetings, conferences, lectures, teaching, especially suitable for various occasions requiring interaction between multiple microphones.