Features: Stay visible and safe in low light conditions with this USB rechargeable armband featuring 360 LED lights and reflective strips, ensuring 1000ft visibility ranges for nighttime activities. Equipped with double USB C ports, sweat resistant battery, and three lighting modes (stable /flashing /color changing), this easy carry 1.8 accessory offer 20+ hours runtime after 1.5 hour fast charging. Ideal for runners, cyclists, pet owners, and outdoor enthusiasts who prioritize safety during pre workouts, evening commutes, or camping adventures. Enhances visibility during night jogging along busy roads, dog walks in , or hiking where sudden weather changes reduce natural light. The breathable nylon construction with skin friendly lining and adjustable closure ensures secure, comfortable wear on arms/ankles while maintaining 360 reflectivity when attached to backpacks or gear. Specifications: Component : nylon Battery: included Length: about 40cm/15.75inch Package Includes: 2xReflective Armbands note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.