The HU-401 AdventurePak™ including 30mm Kids Field Binoculars, Lensatic Compass, Flashlight and Signal Whistle with a Built-in Thermometer is everything you need for great adventures! Perfect for backpacking, biking, camping, and all forms of exploration. Includes a compact 30mm compact binocular, flashlight, lensatic compass with true hand-bearing triangulation capabilities, and a combination signal whistle/thermometer.