【High Visibility LED Reflective Vest】Enhance your safety during night activities with this versatile LED reflective vest, perfect for running, cycling, and other outdoor sports. 【Adjustable Design】Features an elastic band with adjustable buckles, accommodating waist sizes from 72-100cm and shoulder heights from 36-43cm for a comfortable, secure fit. 【Multi-Color LED Modes】Equipped with bright LED strips offering five color options and three lighting modes: steady, slow flash, and multi-color, ensuring maximum visibility in various conditions. 【USB Rechargeable】Powered by a built-in 150mAh lithium battery, easily rechargeable via USB for convenient, long-lasting use. 【Durable Construction】Made from high-quality polyester and latex thread, this vest combines durability with flexibility for comfort during extended wear. Specifications: Battery capacity: 2 x 3V 150mAh rechargeable lithium batteries Material: polyester latex Elastic band width: 4cm Reflective film width: 1.5cm Adjustment range: waist circumference: 72-100cm, shoulder height: 36-43cm