1、Applicable Scenes: By using high brightness wrist ankle helmet LED light, you can stand out even from afar. The light can be used as a night running light, jogging light, and walking light. In addition, when going to school, walking dogs, going home from work, riding bicycles, taking walks, etc., it can not only attract cars, but also attract unlit bicycles and pedestrians, avoiding accidental collisions. 2、Wide Adjustable Range and 3 Lighting Modes: Wrist ankle helmet light is suitable for arm and ankle sizes of 30cm, suitable for all types of men and women, whether they are children or adults. Each lamp has three lighting modes, low light, high light, and flashing. 3、Elastic Band: The wrist ankle light features an elastic band that is comfortable to wear and can also be worn on the wrist, feet, and pets. The helmet light is equipped with a mounting base for easy use. 4、USB Rechargeable: Wrist ankle helmet light is USB rechargeable that is very convenient. It comes with a built in battery, making it long lasting and easy to charge. 5、IPX4 Waterproof: The wrist ankle helmet LED light meets the daily waterproof standards of IPX4, so you can continue exercising without worrying about sudden rain. Item Type: Wrist Ankle Helmet Light Material: Silicone, ABS Helmet Light Battery Type: Lithium Battery (Shipped with Built in Battery) Battery Capacity: 300mAh Wrist Light Battery Type: Lithium Battery (Shipped with Built in Battery) Battery Capacity: 300mAh Ankle Light Battery Type: Lithium Battery (Shipped with Built in Battery) Battery Capacity: 300mAh 1 x Wrist Light 1 x Ankle Light 1 x Helmet Light 1 x Charging Cable 2 x Accessories