Sparkfun Electronics 12mm Piezo Speaker - PC Mount

The 12mm Piezo Speaker - PC Mount operates around the audible 2kHz range. You can use these speakers to create simple music or user interfaces. Each speaker is PTH solderable; Requires an operating voltage of 3.5-5V; Also has a typical sound output of 95 dBA and a coil resistance of 42 ±6.3 ohms