Figure an Arduino most matches the "Other" category ... The product page for that buzzer says "current consumption: 20 mA" These piezo buzzers can be corrected directly to a DC supply.

It runs on mains power and uses a 100dB piezo buzzer for ear-splitting effectiveness to alert [Adam] whenever the freezer is at 32°F/0°C or above. If the Arduino loses sight of the DHT22 ...

A piezo buzzer is used to detect the vibrations inside the drum, each hit triggering a different color combination. The LEDs fade to off after each impact as if dying along with the sound ...

While the pinout is very similar to the Arduino Nano’s ... Primitive audio is also provided in the form of a piezo buzzer that can be muted with a slide switch. It can be programmed to play ...