From Longman Dictionary of Contemporary Englishhandsethand‧set /ˈhændset/ noun [countable] 1 the part of a telephone that you hold near your ear and mouth2 the part of a mobile phone that you hold in your hand
Examples from the Corpus
handset• Recorded commentaries will be available to visitors through a handset.• A handset would contain an ultrasonic transmitter and the television fitted with a matching receiver.• He picked up the radio handset.• Picking up the radio handset, he called the exercise to a halt.• As he watched, Spatz tried the emergency phone, then threw the handset down angrily.• A speaker and a microphone lets you talk and listen without using the handset.• The handset is a NiCad rechargeable system that takes 12 hours to fully charge.• The handset looks like an elongated remote control and weighs only 1 pound. 