UST Marine JetScream Whistle (Orange)
Price 5.11 - 19.95 USD
122db whistle can be heard over most natural and man made noises * Pea-less, this whistle will never rust or freeze up and it floats * Compact design fits comfortably in your pocket * Short lanyard allows you to hook it to your backpack, wrist, keychain, purse, anywhere it is easily accessible * Made in the USA