Ideal for noisy outputs

I ordered this helmet to protect the ears of my little after 2 1/2 years at an air show, but first tested at a fireworks. The helmet covers so much noise, he managed to fall asleep during it. Conclusive results even at the meeting. Only problem, think of relaxing the helmet of the day before, because it tends to tighten, but normal for its usefulness.
I highly recommend this article for rallies, fireworks, concerts, parties (wedding, ...) etc ...