Electronic Components 10pcs 5V/12V/24V Active Alarm Buzzer Beeper 9 5.5mm Mini Active Piezo Buzzer Fit DIY Electronic buzzers 905 (Size : 5V) (Size : 5V)

All products are tested for stability, consistency and reliability,Ensure product excellence.

This is a great assortment of components for electronic professionals or enthusiasts.

100% brand new and high quality.

Active buzzer need only on the DC will beep,active buzzer internal oscillator!