Walfront 3-Pack DC 3V-24V Active Piezo Electric Buzzer Piezo Electronic Buzzer Alarm Active Buzzer Loud Continuous Sound with 100mm Sound Cable

I used this to build a small "alarm" system. Not for burglars, just to scare off my dog who used to chew on toilet paper rolls. It is pretty loud using a 9v battery. Worked magic! I'd say it sounds more like a siren than a buzzer.

I only needed one but this was the least expensive option. One of the three did not function at all, the other two work well.

Not bad for good price

Assez intense et aiguë comme son.

Exceeded our expectations. More than loud enough on 12V circuit.