Industrial Active Noise Cancelling Headset

Industrial Active Noise Cancelling HeadsetEqual amplitude anti-noise of opposite phase cancelling outside noise40mm NDFeB magnet speakerFrequency response of speaker: 40 to 20kHzFrequency response of ANC circuit: 40Hz to 20kHzMaximum active noise reduction level: more than 15dB at 100HzActive noise reduction active range: 40Hz to 500Hz6dB to 35dB in the range of 40Hz to 10kHz

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