The Ultimate Survival Jet Scream Whistle is a superb, low-profile signaling tool. You do not need a bulky whistle to make a loud blast and this little device proves it! Survival Inc's acoustic experts have designed a unique whistle that focuses man-made air streams through harmonically tuned chambers to create a piercing shriek that out-screams any other noise. Jet Scream is sleek and streamlined and will fit unobtrusively in your pocket. In addition, it includes a 6-inch lanyard attachment for your convenience. Hook it to your keychain, your compass or bergen or anywhere else that is easily accessible. Length - 6cm. Weighs- 9 grams. Colour-Black.
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