noun ダウンロード 🔗共有 イヤホン A transducer that converts electric signals into sound and is held near the ear, especially as part of a telephone; an earpiece or headphone. Examples : "I used an earphone to listen to music on the bus. " バスで音楽を聴くためにイヤホンを使いました。 technology electronics sound communication device machine AIとチャット語彙ゲーム読解練習