ear·piece /ˈɪrˌpis/
  耳機;眼鏡腳
  ear·piece /ˈɪ(ə)rˌpɪs/ 名詞
  耳機,聽筒,耳檢測器,(聽診器)耳件,頭戴式耳機
  earpiece
       n : electro-acoustic transducer for converting electric signals
           into sounds; it is held over or inserted into the ear;
           "it was not the typing but the earphones that she
           disliked" [syn: earphone, headphone, phone]