speaker-phone

基本解釋

Whenever possible, use the speaker-phone mode or a wired headset (not a Bluetooth).
有可能的話，通話時盡量使用免提揚聲模式或有線耳機（不是藍牙）。
There she chatted, on speaker-phone, to her faraway mother, who said, of course, that it would be better if her daughter and grandchild stayed safe in the south.
她在廠里用免提電話跟遠方的母親聊天。當然了，她母親說，如果女兒和外孫能夠平安地呆在南方，那樣更好。
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.
可能的話，盡量使用揚聲器模式或者無線藍牙耳機，它將會小于標準手機輻射的百分之一。

The phone also had a high screen-to-frame ratio of 0.693, a 13-megapixel camera, and better quality speaker phone capabilities for hands-free calls.
FORBES: CES 2013: Huawei Challenges Samsung With 'World's Biggest Smartphone'
Meanwhile the Lumia 620's built-in speaker is apparently 20 decibels louder than Nokia's flagship phone, able to penetrate thin walls at a maximum of 100 decibels.
ENGADGET: Nokia Lumia 620 review: precisely what an entry-level smartphone should be
With its sleek design, large speaker, and four built-in microphones, Talking Point is the perfect hands-free phone solution for the home or office.
ENGADGET: Ion unveils cellphone accessories for home phone replacement, speakerphones

A speakerphone is a telephone that has a microphone and a loudspeaker, allowing you to talk to someone without putting the phone to your ear, as well as allowing other people to hear the person you are talking to.