This is a compact 12mm round speaker that works around the audible 2kHz range. It's great for creating simple music or user interfaces. Unlike a true piezoelectric speaker, it uses an electromagnet to drive a thin metal sheet instead of a piezoelectric crystal vibrating with an electric current. So, you'll need to use some form of alternating current to produce sound. The good thing is that this speaker is tuned to respond best to a square wave, like the one from a microcontroller. You can find the datasheet in the documents section.
Using this speaker is easy. First, make sure you have an alternating current source to power it. You can use a microcontroller to generate a square wave for the best sound output. You can use it to add simple music to your projects or create user - interface sounds. When handling the speaker, be gentle as it has a thin metal sheet. Avoid exposing it to extreme temperatures or moisture. To maintain it, keep it clean and free from dust. You can use a soft brush to gently clean the speaker if needed.
