This whistle not only puts out a surprising amount of high pitched noise, but it also has a small waterproof capsule with a slip of paper for emergency information. It weighs next to nothing. Keep it on your keychain or anywhere else so you can always have a whistle when you need one, and emergency information for any unexpected situations. The whistle is made out of aluminum and is anodized red. The label features a red cross symbol and says: "WHISTLE ID - In case of emergency open capsule." Of course, you can replace the note with one of your own.

An important addition to any keychain, necklace, or backpack. Hikers, travelers, parents, diabetics - really just about everyone - will find this emergency whistle useful.

A tiny whistle that puts out a surprising amount of high pitched noise. It weighs next to nothing, so keep it on your keychain or anywhere else so you can always have a whistle when you need one. Whistle is made out of aluminum and is anodized red.

An important addition to any keychain, necklace, or backpack. Hikers, travelers, parents - really just about everyone - will find this little whistle useful.