Summary: Universal passive buzzer, 16 ohm. Driving mode and the working principle and the same as ordinary loudspeaker.
Passive buzzer means need to add audio driver signal to make it sound,corresponding to the active buzzer. Active buzzer need only on the DC will beep,active buzzer internal oscillator!
Frequency: 2000HZ
Rated voltage (or working voltage): 3V/5V/9V/12V
Rated current: 30mA
Weight: about 13g one