But when they are off key or sing at the wrong pitch, the device will exaggerate their mistake so that they can hear it in a pair of earphones they are wearing.

但是，当他们跑调或唱错音高时，这个设备就会放大他们的错误，这样他们就能从自己戴着的耳机中听到了。

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The Mosquito, a device that emits a screeching sound at a pitch heard only by young people, is designed to so irritate youths that it deters them from loitering.

“蚊子”是一种能发出尖锐声音的设备，而这种频率的声音只能被年轻人听到，被设计用于对付亢奋的年轻人，阻止他们继续在街上活动。

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The built-in microphone of the device is used to record and analyze any sound that can be heard, and the detected pitch is displayed in real-time.

装置的内建喇叭筒用来记录并且分析能被听到的任何声音，而且被发现的程度被显示在即时的。

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When pharma and device companies approach health systems to pitch their ideas for lowering the cost of healthcare, the conversation gets delegated to purchasing managers who just want to negotiate down the price of the drug or implant.

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When the device first launched in 2002, Angle brought a box of Cheerios to retailer pitch meetings.

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