Electronic Pocket Whistle
Product Description
You don't even have to blow the electronic pocket/keychain whistle...just push a button. Emits a loud 120db whistle for as long as you push the button. Useful for locator in emergencies (earthquakes, collapsed buildings), referee whistle, traffic whistle for police, military training, dog handling and as a safety alarm for crime prevention. 4 inches long. Metal construction. Uses 4 LR44 batteries (included).