The Survival Kit includes both the Safety Strobe and Signal Mirror Kit for the ultimate in back country survival and rescue equipment. The Safety Strobe produces a multi directional beam that is visible up to 2 miles away. The float-able unit has a high-impact ABS case and is waterproof to 328 feet, allowing it to be used for diving purposes. It operates on two AA batteries for 10 hours as a strobe, or as a flashlight for up to 2 hours. Xenon flash tube with krypton bulb. The Signal Mirror Kit is an all-in-one emergency signaling system including signaling mirror and whistle. The signaling mirror produces a red dot on your target when target image, mirror and sun are in proper alignment. The mirror reflection will then flash light toward the target. Telescope-quality reflective mirror provides a focused, bright image. USCG-approved whistle can be used as an audible alert in low-visibility conditions. Includes lanyard and float for easy recovery if dropped into water.