B-27 5V Buzzer

A buzzer, also known as a beeper, is a type of audio signalling device that can be mechanical, electromechanical, or piezoelectric. Alarm devices, timers, and confirmation of user input, such as a mouse click or keystroke, are common applications for buzzers and beepers. This Buzzer is a Good performance; general-purpose musical buzzer used commonly in alerting / alarming circuits, rever horn and kids toys etc. 

Specifications