[KongchangAI]
Unverified80% confidenceTradeoffTime unknown

法兰硬度越高密封性越好降噪越强,但长时间佩戴(>4小时)耳道压迫感明显,久戴场景应选医用级软硅胶材质的低硬度款

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80%
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Long-term
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