ACR WW-3 Whistle

The ACR WW-3 whistle is a small flat whistle specially designed for emergency or rescue situations.

The whistle is 1.0 x 2.0 x .25 in (2.5 x 5.0 x .6 cm) so it is really small and flat weighting just 1.4oz (4og) the flat shape makes it possible to be carried in a wallet or a small side pocket in a hat or other apparel. For a neck lanyard it is very confortable since the plastic is smooth and the flat shape makes it invisible under a t-shirt. It is probably one of the best options for a small emergency kit inside a small tin.
It can also be carried in a keychain but that is probably not the best way to take advantage of the flat shape.

The sound is loud producing a dual tone pitch that can be heard from long distances; it can be used in all weather conditions and it can be attached to rescue tools or equipment and be available in case of need.

The whistle comes with a yellow lanyard and you can read more in the product page.