• Greater visibility and safety in sports and outdoor activities, both in the morning and at night. • Rechargeable and comfortable: each LED band includes a USB charging cable and can be easily charged through any USB port. Charging time of approximately 2 hours, with a usage duration of more than 6-10 hours. • Adjustable size: total length of 35 cm and width of 2.5 cm. Adjustable for sizes from 28 to 32 cm, suitable for adults and children. Sweat-resistant and comfortable to wear. • Four lighting modes: fast flashing, slow flashing, continuous brightness, and off. Provides 360-degree visibility, selectable with just the press of a button.