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The noise reduction level of Redmi Buds 4 Pro has obtained the official certification of China Institute of Metrology, and the maximum noise reduction depth has reached 43dB and 3000Hz broadband.
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In terms of sound quality, the headset uses a coaxial double moving coil unit composed of 10mm aluminum-magnesium alloy moving coil and 6mm titanium diaphragm treble moving coil, which has better performance in high and low frequency.