Easy to use and attach The LED strobe light comes with a lanyard and clip and can be attached to any life vest. This keeps you visible and safe during water activities. Excellent visibility Designed for low-visibility water environments, the strobe light is visible from over a mile away from any watercraft. This helps ensure others can spot you and improves overall safety. Battery-free water activation Activation is water-activated and requires no batteries. Simply expose the light to water to provide a reliable safety light source during emergencies or outdoor adventures. Durable and reliable A rugged waterproof shield protects the light, allowing it to withstand extreme marine conditions and provide dependable visibility during boating, fishing, and other water activities. Key attributes - Activation: water-activated, no batteries required - Attachment: includes lanyard and clip; attaches to any life vest - Visibility: visible from over a mile away from watercraft - Durability: rugged waterproof shield for use in harsh marine environments Use scenarios - Night or low-visibility boating, kayaking, or fishing: attach to your life vest to improve visibility for others on the water. - Emergency signaling during rough seas or bad weather: water-activated light provides a quick, battery-free signaling option. - Group safety during outdoor water activities: easy to spot by companions and responders when separated or in need of assistance.