In-ear phones like Etymotic's ER6 go deep into the ear canal.

像音特美 ER6 这样的内置式耳机可以深入耳道。

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Swimmer's ear is an infection of the outer ear canal.

游泳性耳炎是一种外耳道感染。

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The ear canal also named middle ear splays out at the external position.

耳道亦称中耳，内小外大呈喇叭状。

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The glands in the ear canal that produce the wax make too much in some people.

VOA: special.2010.03.31

Use a syringe device to gently direct water against the wall of the ear canal.

VOA: special.2010.03.31

You should never put a cotton swab or other object into the ear canal.

VOA: special.2010.03.31

The MDHearingAid also sits behind the ear with a plastic dome in the ear canal.

WSJ: Testing, Testing...Can You Hear Better Now?

School researchers are trying to harness that energy through a new sensor that exploits the whole ear canal system.

ENGADGET: MIT ear-powered wireless sensor sustains its charge through sound

The company's own tests, sanctioned by a department of health in Russia showed that radiation around the ear canal was indeed dramatically lowered.

FORBES: Shield sham