Excellent quality and loud! No worries about getting lost in the woods!

So I normally love to take some pictures or video of products for other shoppers to get the details on it all.  My husband and one of our kids decided to go hiking overnight in the PNW aka Pacific Northwest.  So I missed taking pictures.  However, they practiced using these several times on their weekend trip.  They were able to find each other and the pitch and volume of the whistles was excellent!  This is what I worry about when my kids and husband go out hiking, camping and fishing.  I always worry and think "What if?"  which made me purchase this emergency survival whistle set.  Now that I know they work well, I really feel comfortable when they decide to take a trip.  They are easy to use, great quality and work very well. We would definitely recommend this brand.