headset
n. countable B1 Intermediate US //ˈhɛdˌsɛt// UK //hˈɛdsɛt// head·set
n. a pair of headphones with a small microphone attached. You wear it on your head to listen and speak at the same time.
n. a combined device consisting of headphones and a microphone, worn on the head for simultaneous audio input and output.
She wore a headset to take the call.
The customer service agent put on her headset to answer the incoming phone call.
The pilot adjusted his noise-cancelling headset to ensure clear communication with the control tower during the turbulent approach.
From head + set.