Breakaway Lanyard -Carabiner Features: -Easy To Use Press & Hold instAlert On-Demand Panic Button (Great for Seniors & Youth) -Replaceable Batteries -Battery Separator Film Conserves Battery Life Before First Use -Very loud 130 dB siren to immediately draw attention for any emergency situation -Safe and easy to use for everyone– simply pull the pin-top or press and hold instAlert side panic button to activate the alarm -Designed to be robust and lightweight, yet elegant -It’s the perfect companion for all activities, including walking, hiking, camping, running, nights out, and a must-have as part of any emergency kit -TSA approved and airport friendly