
Emergancy Whistles
Ultralight emergency whistle made Hilltop Packs for Apex Giant right here in Pennsylvania. There are two different versions. The single barrel we designed it to be as small and light as we could get it and still loud as possible. The double barrel adds more volume. WeightsSingle barrel whistle 0.12 Ounces or 3.6 gramsDouble barrel whistle 0.24 ounces or 6.8 grams SizesBoth whistles are 2 inches long. Here are the exact specs.Single barrel whistle 0.45"x2.0"x0.35"Double barrel whistle 0.84"x2.0"x0.35" LOUDNESSSingle Barrel - 127dbDouble Barrel - 132db CAUTION: Note on DB levels. All emergency whistles over 70db can cause damage to your ears. Whistles over 110 can do instant and sometimes unrepairable damage. Even though these are ultralight whistles they can still do serious injury. Please use with caution when needed. These are not toy whistles. Note about the hole. The hole is big enough to put a cord through and use as a necklace or extra carry handle. Any dyneema cord 2.2mm or small