Survival Res-Q™ Whistle with Lanyard Get attention when you need it with the ResQ™ Whistle.  This compact survival whistle was specially developed to locate boaters who’ve fallen overboard, but it can also aid in land rescues. The ResQ issues a shrill dual-tone up to 100 decibels, which is audible over great distances.  The unique, flat design of this whistle keeps it from holding water, and its 31.5\