The noise reduction mainly includes Active Noise Reduction (ANC) and call noise reduction ENC. The principle ANC is that the microphone collects external environmental noise, and then the system transforms it into an inverted sound wave and adds it to the speaker end. The final sound heard by the human ear is: environmental noise+ inverted environmental noise, and the two types of noise are combined to achieve sensory noise reduction, with the beneficiary being oneself.

Environmental Noise Cancellation (ENC), which uses a multi microphone array to accurately calculate the direction of the speaker's speech, while protecting the target voice in the main direction and removing various interference noises in the environment. The beneficiary is the other party, who can clearly hear what you are saying.