not all towns in NH allow fireworks (see:
http://nhpr.org/post/map-does-your-t...works#stream/0) and many have oridances for times after which they can not be fired.
If the youth in question are legally using the fireworks then the problem is yours not theirs. If they are not then you can let the local authorities resolve the issue for you.
While I find them annoying during their apex, my dog (who hunts with me) find the sound "exciting". Its just one of those "seasonal" items we deal with here. try using these tips:
https://positively.com/contributors/...ing-fireworks/