就是耳背式助听器的耳机不位于机身内，而是置于佩戴者的耳道内。 一根由细导管包裹绝缘的细导线连接耳机与助听器机身。
This refers to the use of a BTE hearing aid where the receiver (loudspeaker) is placed outside of the hearing aid case and inside the wearer's ear canal.
依靠全新的CRT耳道式受话技术，小霸王把精密的数字仿生技术运用到了世界上最小的大功率助听器。
The microPower succeeds in integrating all the sophisticated innovations into the smallest dimensions ever, creating the world's most discreet power device in the industry.
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