Using this mini metal speaker is a breeze. First, connect it to your audio project. It works great with the Wave shield or class D amplifier board. When you're using the class D amp breakouts, start with the volume all the way down. Then, slowly increase it. This is important because the class D amp can send too much power (1.7W) to the speaker, which could damage it. As for maintenance, keep it away from moisture and dust. You can use a soft, dry cloth to gently wipe it clean if it gets dirty. That's all there is to it, and you'll enjoy great sound from your small audio project.