Clip onto backpacks, belt straps, lashpoints and specialty gear Switch between Flashing and Steady-On by flipping the battery Visible from all directions (omnidirectional) Extremely durable, temperature resistant and waterproof Includes attachable Belt Clip The small, lightweight Guardian ? is a fully waterproof, impact resistant and omnidirectional signal light. It is reliable in almost any situation. Whether for camping, hiking, travelling, running, skiing, swimming, wakeboarding, fishing or hunting, this versatile light will stick with you through it all. It can easily attach to belts, backpack straps, canoes or boats and virtually anything else that you need it to. There are additional accessories available to further increase the Guardian??s modular adaptability. Thanks to patented Reverse Polarity Program Switching? technology, the function of the light can be changed between flashing and steady on modes by simply flipping the battery over. Whatever the adventure, the Guardian ? can help you return home safe. Battery Source: 6V Lithium Coin Cell Battery Pack (included) Optional Battery: 2x Cr2032 3V Lithium Coin Cell Visibility Range: 3 miles (5km) Waterproof Rating: 100 Meters (328 Feet) Operating Temperature: -20 to +60C Environmental Seal: O-Ring Dome Lens: High Impact Polycarbonate Housing Material: High-Tech Polymer Technology: Patented Omnidirectional Optics, Reverse Polarity Program Switching Battery Duration: (may vary with temperature) Flashing ~240 Hours Steady-On ~100 Hours Adventure Lights Guardian Expedition LED Signal and Safety Waterproof Beacon Clip onto backpacks, belt straps, lashpoints and specialty gear Switch between Flashing and Steady-On by flipping the battery Visible from all directions (omnidirectional) Extremely durable, temperature resistant and waterproof Includes attachable Belt Clip The small, lightweight Guardian ? is a fully waterproof, impact resistant and omnidirectional signal light. It is reliable in almost any situation.Whether for camping, hiking, travelling, running, skiing, swimming, wakeboarding, fishing or hunting, this versatile light will stick with you through it all.It can easily attach to belts, backpack straps, canoes or boats and virtually anything else that you need it to. There are additional accessories available to further increase the Guardian??s modular adaptability.Thanks to patented Reverse Polarity Program Switching? technology, the function of the light can be changed between flashing and steady on modes by simply flipping the battery over.Whatever the adventure, the Guardian ? can help you return home safe. Battery Source: 6V Lithium Coin Cell Battery Pack (included)Optional Battery: 2x Cr2032 3V Lithium Coin CellVisibility Range: 3 miles (5km)Waterproof Rating: 100 Meters (328 Feet)Operating Temperature: -20 to +60CEnvironmental Seal: O-RingDome Lens: High Impact PolycarbonateHousing Material: High-Tech PolymerTechnology: Patented Omnidirectional Optics, Reverse Polarity Program Switching Battery Duration: (may vary with temperature)Flashing ~240 HoursSteady-On ~100 Hours (description exceeds maximum possible length)