the Outdoor Multifunction Whistle is a Versatile Tool Designed for a Range of Outdoor Activities & Emergency Situations. This Three-in-one Device Combines a High-pitch Rescue Whistle, a Reliable Compass, & a Practical Thermometer into One Compact Unit. Ideal for Hiking, Camping, & Sports Officiating, It Ensures You Have Essential Survival & Navigation Tools at Your Fingertips. the Whistles Piercing Sound Can be Used to Signal for Help in Emergencies, While the Compass Provides Accurate Direction-finding Capabilities. the Built-in Thermometer Allows You to Monitor Environmental Temperatures, Aiding in Planning & Safety. International Freight May Vary a Lot Sometimes, Please Confirm the Price with Us Again Before Placing an Order.