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Electronic Pocket Whistle.
You don't even have to blow the HP-388 electronic pocket/ keychain whistle...just push a button. Emits a loud 120db whistle for as long as you push the button. Useful in various situations such as sporting events, a locator in emergencies,(earth quakes, collapsed buildings), referee whistle, traffic use for police, military training, dog handling, and as a safety alarm for crime prevention. 4 inches long.
Uses 4 LR44 batteries (Included)
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