The Coghlans Six Function Whistle is a powerful addition to the avid outdoorsman s tool set. This survival whistle features a convenient lanyard and clip to keep it well-secured during outdoor activities as well as a built in glow-in-the-dark compass to easily navigate. The compass whistle also includes a magnifier for close-up inspections and a built-in thermometer for easy temperature tracking. Finally the Coghlans Six Function Camping Whistle offers a signal mirror and LED light for signaling and increased dark or nighttime visibility.