[KongchangAI]
Unverified86% confidenceTradeoffTime unknown

入耳式(耳道式)密闭性好、放大效率高但易产生堵耳效应(自己说话声嗡嗡响);耳挂式(BTE式)佩戴更稳、适合长时间使用但体积明显、隐蔽性差,老年人手指灵活度低时耳挂式更易操作

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