loudspeakerphone
nounUK /ˌlaʊdˈspiːkəfəʊn/
US /ˌlaʊdˈspiːkərfoʊn/
A phone that lets you talk and listen without holding it to your ear.
We put Grandma on the loudspeakerphone so everyone at the table could hear her.
OTHER MEANINGS
2. A telephone feature that amplifies sound so several people in a room can hear the call.
He switched to loudspeakerphone mode during the meeting.
3. A device combining a loudspeaker and a microphone for group listening and talking.
The office bought a loudspeakerphone for team calls.
4. A telephone conversation conducted with the sound turned up for others to hear.
She took the call on loudspeakerphone while driving.