bleeper
noun🔊/ˈbliːpə(r)/
🔊/ˈbliːpər/
(British English) (also beeper especially in North American English)
a small electronic device that you carry around with you and that lets you know when somebody is trying to contact you, by making a sound 寻呼机；BP 机 All the doctors in the hospital carry a bleeper. 医院里所有的医生都带了一个蜂鸣器。