入耳式耳机比头戴式的更好，因为它们可以阻隔更多的外界噪音。
In-ear headphones are better than over-the-eat ones because they can stop more outside noise.
他们希望有一天他们能够操控这种阻隔环境噪音的能力，以使浅睡者能够获得更好的睡眠质量。
They hope that one day they will be able to manipulate this ability in order to give lighter sleepers a better night's rest.
这样既通透又能起到阻隔作用，还非常隔音，厨房里的噪音外面根本听不见。
This will not only transparent but also play a blocking role, but also very sound, the kitchen can not hear the noise outside.
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