Come and see our amazing products. Promotional Outdoor survival tools. This aluminum whistle has many uses including lifeguards, referees, umpires, tour guides, sport trainers, cheerleaders, traffic cops, police, military training, dog handlers, or even as an emergency locator (earthquakes, collapsed buildings). Easy to operate by hand, Control of whistle sound with 120dB. Use as a safety alarm for crime prevention. Pls confirm with us about the packing info, stock status and exact production time before placing your orders.