USB charging LED Armband Adjustable Wristband Reflective Flashing Strips Ankle Glow Bracelet Safety Light for Night Jogging Walking Biking Model:627T265R57N9651 LED flashing armband: the design of the safety luminous Sports Wrist Strap takes comfort into consideration. The LED arm strap is light and soft, which can prevent wearers of all ages from fatigue and discomfort. Suitable for men, women and children, just wrap it around your wrists, ankles, arms and legs, or tie it to your bike, helmet, schoolbag, backpack, anywhere you like. Widely used: you can also wear it to participate in night activities, such as concerts or Bonfire parties of your favorite singers. standard:. Material: nylon webbing + reflective tape + LED lighting tape. Total length: 35cm. Adjustable length: 28-32cm. Color: red, green, blue (optional) Four models: fast flashing, slow flashing, continuous on and off. Battery requirements: CR2032 button batteries. Charging model: it can be used for about 8 hours each time, and can be recharged repeatedly. Package includes: (optional) Led armband x 1pcs /1 pair USB charging cable x 1