Turn off the phones, plug in your headphones (to block out sound), put up a “do not disturb” sign, turn off your email notifiers, maybe put your email in vacation mode.
2
可能的话，尽量使用扬声器模式或者无线蓝牙耳机，它将会小于标准手机辐射的百分之一。
Whenever possible, use the speaker-phone mode or a wireless Bluetooth headset, which has less than 1/100th of the electromagnetic emission of a normal cell phone.
3
蓝牙？手机支持耳机模式，免提模式或两者。
Bluetooth? Phones support the headset profile, the hands-free profile or both.
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