ear microphone

例句：

1. 1.The engineer used an ear microphone to monitor the sound levels during the construction.
   工程师使用耳麦克风来监测施工期间的声音水平。
2. 2.The singer placed his ear microphone close to his mouth for better recording.
   歌手将他的耳麦克风靠近嘴巴以便更好的录音。
3. 3. The musician used a pair of ear microphones to capture the live performance.
   音乐家使用了一对耳麦克风来捕捉现场表演。