Sleepy reminder: Wear the ear, turn on the switch, when you want to sleep, put head to lower 20 degrees and it will shake to ensure your driving safety.

戴在右耳上，打开开关，当您瞌睡时，头部低下20度左右的时候，就会发出蜂鸣，确保您的行车安全。

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Fans and air filters add to the distractions, so some astronauts wear ear plugs to block out the constant hum.

风扇和空气过滤器是另一个干扰源，因此有的宇航员会戴耳塞，挡住这些持续不断的嗡嗡声。

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But cell phones' explosion in the marketplace, and users' tendency to wear them close to the body and hold them repeatedly to the same ear, have led scientists to take a second look.

可是手机在市场上的爆炸式增长，以及使用者倾向于将他们贴身携带和通话时反复置于同一只耳朵上，使得科学家们不得不再一次审视它的使用安全。

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While it looks like it'd be heavy and hefty to wear, the device is very comfortable to wear for short periods of time and the ear cups are extra soft to avoid that pinned-back feeling you get with heavier hardware.

ENGADGET: Thermaltake and BMW's Level 10 M gaming headset hands-on

Clinton would wear the small, undetectable hearing aids in each ear only on certain occasions, such as in crowds, his doctor said.

CNN: Clinton Gets A Hearing Aid, Loses A Cyst

However, the chatter and babble that I had to endure at times resulted in me keeping a pair of chain saw ear-defenders to hand - I was able to don said ear-wear when I needed to have the peace and solitude that the complexity or quantity of work demanded.

BBC: The pleasures and perils of the open-plan office