earpiece

/ˈɪrpiːs/
noun
  1. The part of a telephone, headset, or other device that is held against or inserted into the ear to listen.
    • He held the earpiece of the phone close to his ear to hear better.
    • The earpiece of her hearing aid needed a new battery.
    • I could hear static in the earpiece during the call.
  2. A small speaker worn in or on the ear for listening to audio, often part of a headset or earphone.
    • These wireless earpieces connect to your phone via Bluetooth.
    • She adjusted the earpiece before starting her podcast recording.
    • The left earpiece stopped working, so I could only hear music in one ear.
What does "earpiece" mean? | whatsthatwordmean | whatsthatwordmean