Passive Buzzer

From the shop's description

Passive buzzer can produce different tones according to sound control signal. For example you can use arduino to make the buzzer produce different sound tones. Unlike the active buzzer which produce fixed tone when you just give power. This buzzer is 5 V, with two pins, connect one pin to the ground and the other pin to any arduino digital pin. Check this tutorial for how to play music using this buzzer and arduino