Miniature Piezo Audio Transducer AL-256K

(Saftey first! Wear ear protection when working with noise.)

First off, these things are tiny. Secondly, the website where I purchased them lists them as being extremely, amazingly tiny, but they are not. They're about the width of a US quarter, but I was expecting them to be about a third that size. Oh well.

I'm kind of tired of writing about buzzers, so read the review of one of my other buzzers to get such gems as "it's loud" and "be careful."

I got two dozen of these little buggers (around $0.50 each!), and I have Plans for them...