Yes! It works! This key chain is perfect to keep you safe while walking home late or when you find yourself in a tricky situation. These whistles are LOUD and can help you get someone’s attention when needed. These are also great to have on you while walking your dog, to scare off a coyote.

The brass whistle measures 40mm long (10mm diameter) and comes on a sturdy brass key ring.

Check it out on a necklace as well !