This Emergency CERT Whistle is amazing for producing high volume sound in emergency or disaster situations. It produces sounds as loud as 120db through 3 separate sound chambers. Two outer chambers create separate omni-directional frequencies, while the center chamber with pea creates staccato sound, critical for rescuers to discern whistle over environmental noises such as howling wind, rushing water, emergency vehicles etc. Comes with fastener for key ring and backpacks. Made in the USA.
Weight .05 oz.