Piezo Buzzer Extremely Quiet

I have the piezo buzzer working, but it is extremely quiet (barely audible) when connected to the GND and OUT pins.

If I connect the OUT pin to the +5V, it is of the expected volume.

Am I wiring something wrong?

 I have the same issue how did you resolve it?

 Stupid question, but did you pull off the paper cover?

I wish that were a stupid question but in fact  I am so stupid I did not pull the sticker until it later dawned on me.  Of course it now works perfectly.  I felt really dumb!  Thanks for taking the time to get back.

I am having this same issue with the buzzer that came with my Konnected kit as well.  I bought another buzzer and it works as I would expect.