The GSC1230YB-3V4000 Externally Driven 75dB@3V,10cm Externally Driven 3V 4000Hz - Buzzers ROHS manufactured by INGHAi is an electronic component designed for use in electronic circuits. It is an audible alarm that produces a loud, sustained sound when triggered, and its rated sound output is 75 decibels. This buzzer is externally driven, meaning that it does not require any additional source of power but is instead powered off the circuit's power supply. As a ROHS-compliant product, it does not contain any dangerous materials that may be hazardous to people's health. This buzzer is perfect for use in alarms, bells, buzzers, and more.