Clearance! G21389 ` Active Buzzer

Active buzzer is 0.57" X 0.61". This buzzer module operates from 3.3V up to 5VDC and has built in circuit to produce a tone. What you see in the picture is what you get. No schematic or documentation included. You can search the Internet for hundreds of how to articles for applications. Sorry, we can't provide any technical help for this item.