buzzer

The game show contestant pressed the buzzer before anyone else could answer the question.

(Chinese) 电视节目竞赛者在其他人回答问题前按响了蜂鸣器。

The laundry is finished when you hear the loud buzzer on the dryer.

(Chinese) 当你听到烘干机上响亮的蜂鸣声时，衣服就烘干了。