Home > News > FAQ

What is submun?

2024-01-15

The sub-sound function of the intercom refers to the continuous voice control to control the radian noise system, commonly known as sub-audio, which is a technology that is more than the frequency (67Hz-250.3Hz) that is lower than the audio signal. Because its frequency range is below the standard audio, it is called sub -audio.
We use cookies to offer you a better browsing experience, analyze site traffic and personalize content. By using this site, you agree to our use of cookies. Privacy Policy
Reject Accept