Use speaker phone的意思|示意

Don't use a speaker phone unless absolutely necessary.

若非必要，不要使用电话的免提功能。

Use a shoulder rest receiver, speaker phone, or headset.

使用肩部来固定收话器，扬声器电话或头戴送受话器。

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.

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。

Ditched the landline? Use a hands-free device like a headset or talk on speaker phone (preferably the former when in public).

除了座机，用免提设备像耳机或者用扬声器电话交谈(公开场合前者更好)。

Whenever possible, use the speaker-phone mode or a wired headset (not a Bluetooth).

有可能的话，通话时尽量使用免提扬声模式或有线耳机(不是蓝牙)。

You can use the compressor tool to make the highs and lows a little closer so that the sound is good even from a tiny phone speaker.

您可以使用压缩器工具将高音和低音调的更相近一些，这样即使是小手机扬声器声音也会好听。