Short of not using a cellphone, the lowest exposure would come from using the speaker phone or a wired headset or ear buds.
减少与手机接触的最有效方法是使用手机的扩音器、有线耳机或耳麦。
In addition to visual tuning via meter, the GA-30 can play reference pitches from its internal speaker (Sound Out) for tuning by ear.
除了通过视觉调谐米的GA - 30可以发挥其内置扬声器(声音输出)，供参考球场耳调整。
Of course, the second speaker does not mean he heard the news about John by putting his ear to a grapevine!
当然，第二个谈话者并不是说，他把耳朵贴在葡萄藤上才听到这个关于约翰的消息的！
It has a speaker that plays soft clicking noises, and a microphone that records the noises your ear makes in response.
它有一个扬声器，起着软点击噪音，和麦克风记录的噪音，使您的耳朵的回应。
And when you sit in front of the speaker, the sound comes straight at you at ear level, just like sitting right in front of the musicians.
当你坐在喇叭前面，声音直达到你到你耳朵的水准，你就像坐在音乐家的前面一样，这就是最好的了。
Call quality is pathetic, she adds, mostly because the tiny speaker has to be perfectly aligned with your ear canal to work.
通话质量是可悲的，她说，主要是因为小小的扬声器，必须与你的耳道完全对齐。
You hear it, girl come here, put your ear up to the speaker.
你听到了么，那女孩来这了，把你耳朵贴在扬声器好好听着。
YOUNG man is sitting quietly with a micro-speaker embedded deep in his ear.
年轻人安静地坐着，耳朵深处塞着一个微型耳机。
The note is monitored as by ear at the speaker to detect the relative volumes of the fundamental frequency and the highest audible harmonic frequency.
该说明的监测，这在发言检测的基本频率的相对量和最高谐波频率的声音的耳朵。
The note is monitored as by ear at the speaker to detect the relative volumes of the fundamental frequency and the highest audible harmonic frequency.
该说明的监测，这在发言检测的基本频率的相对量和最高谐波频率的声音的耳朵。
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