microphone

The singer tapped on the microphone to check if it was turned on before starting the concert.

(Chinese) 歌手在音乐会开始前轻拍麦克风，以检查它是否已经开启。

Please speak directly into the microphone so the people at the back of the hall can hear you.

(Chinese) 请直接对着话筒说话，这样大厅后面的人才能听到你的声音。