Ultimate Survival Technologies JetScream Whistle
Very nice, inexpensive and useful tool. You should buy one for your kid and one for survival kit.
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 allow you to hook it to your backpack, wrist, keychain, purse, anywhere it is easily accessible
Made in the USA