I have used these buzzers for years in an engineering event with Girl Scouts and they are always dependable and loud! My only issue is occasionally they are on backorder.
This buzzer creates a very loud high pitched sound that is easy to hear when you are in another room. Constructed out of good quality material.
Awesome folks, huge stock and it's actually in stock (WAC), fast shipping. One of my few favorites for electronics and parts. A+ Solid.