Builtin rechargeable battery — No more frequent battery replacements. A single charge delivers 3–4 hours of run time, enough for daily use and more economical over time. visibility LED with three modes — Choose from flash, slow flash, or steady on with a oneclick switch. The brightness LED remains clearly visible at night, in rain, or other lowvisibility conditions to improve safety during outdoor activities. Comfortable, adjustable fit — Made from soft, lightweight nylon for comfortable wear without bulk. The flexible design adjusts easily to fit wrists, ankles, arms and other body parts. Suitable for men and women, young and old, and can be worn securely even under heavy winter clothing. Lightweight, portable and multipurpose — Compact and easy to carry. Wear it on your body or attach it to backpacks, bicycles, helmets and other gear for added visibility and warning in a variety of situations. Key attributes: Function: Rechargeable LED safety light with three operational modes (flash / slow / alwayson). Material: Soft, lightweight nylon band for comfort and durability. Performance: 3–4 hours of battery life per charge; brightness LED for night and lowvisibility use. Compatibility/fit: Flexible, adjustable design fits multiple body parts and a wide range of users. Practical use scenarios: 1) Earlymorning or evening runner — Wear on wrists or ankles to remain visible to drivers and cyclists during lowlight runs. 2) Urban or commuter cyclist — Attach to a helmet or backpack for extra visibility in traffic and rainy conditions. 3) Family walks and outdoor activities — Use on children, seniors or gear when walking, hiking or dogwalking to increase safety in dim or changing light. What you get: a rechargeable, easytoadjust reflective light band that improves visibility during outdoor activities without the hassle of disposable batteries.