Squelch function can reduce, suppress or eliminate useless noise, so that it will not pass through the speaker When it comes out, the voice of the call can be retained (even under the weak signal in the case of loud noise).
CTCSS is a different frequency signal attached to the main transmission frequency. If different sub-tones are set, the signal will be masked to prevent outside interference.
Using frequency hopping function can prevent monitoring and make communication more encrypted and anti-interference
Audio compression, expansion
This function can effectively compress part of the transmitted setting signal before transmitting to the other end, and then expand the signal at the receiving end, thereby maximizing the signal-to-noise ratio of the intercom. Make the voice clearer.
Using 40mm large speakers, loud and clear.
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