Detailed description

The OTSO whistle is a lightweight, practical accessory designed to accompany you on your mountain and trail-running adventures. A small item that can make all the difference when you need it most.

Make yourself heard.

In the event of getting lost or an emergency, its sound helps attract attention from a distance and makes it easier to locate you. Because in the mountains, being prepared is always a good idea.

Lightweight and easy to carry.

Its compact design takes up very little space, and you can always carry it with you without it interfering with your run. Add it to your gear and forget about it until you need it.

A must-have in the mountains.

In mountain races and outdoor activities, carrying a whistle is a basic safety measure. Small, simple, and ready to accompany you on any adventure.

Run safely. Run OTSO.