Everything you need in one compact waterproof package! The versatility of this multifunction design includes a flashlight with two brightness settings, a Xenon strobe, and a pre programmed S.O.S. signal. A wide suction cup base with bungees allows the S.O.S. Deluxe to secure easily to any deck configuration, while the magnetic socket keeps the light firmly seated in the suction cup base. Use the S.O.S. Deluxe in your tent, on your PFD, on your deck, on the trail, or even use the magnetic base to turn the S.O.S. Deluxe into a great distress light on the roof of your car. All HydrostarsTM are waterproof to 50ft and batteries are included. Note: Light now has a RedRed setting instead of previous RedGreen setting.