1. Expandable headband made with elastic and stretchy fabric, featuring no-slip materials for a comfortable, secure fit. Stylish and unisex design suitable for various activities. 2. High visibility with bright LED lights to enhance visibility in low-light conditions. Helps improve awareness from vehicles during nighttime, rain, or fog, supporting safety during running, jogging, or walking. 3. Constructed with breathable knitted fabrics, this LED sport headband offers a soft, skin-friendly, and comfortable feel. Lightweight design with balanced fit helps minimize movement during use. Suitable for men, women, and children. 4. Equipped with a high-quality lithium-ion rechargeable battery. Conveniently USB rechargeable for reliable power. 5. Fully washable design. Features a removable LED module with a secure PVC seal for easy cleaning. Hand washing is recommended after removing the electronic component.