Electronic Buzzar
Electronic buzzers are small, inexpensive electronic devices that emit a beep or other simple audio sound. They are used in a wide variety of applications to provide audible signals, such as alarms, timers, and confirmations of button presses. Electronic buzzers are typically powered by a DC voltage source, such as a battery or a regulated power supply. They are very simple to use and can be easily incorporated into electronic circuits. Low battery warning: Buzzers can be used to warn users when the battery in a device is running low.