1. Equipped with a USB rechargeable battery to protect the chest and back. The luminous part can be charged via USB without replacing the battery, which is convenient and environmentally friendly. Comes with USB charging cable. 2 Adjustable reflective strips and reflective outline design make going out at night safer. The buckle is adjustable, convenient and quick. 3. The buckle is designed to fit the gap and is firm and not easy to break away. It will automatically pop up when pressed, making it easy to wear. 4. Metal D-shaped buckle, anti-corrosion, non-rusting, high hardness, not easy to deform and break. 5-button switch, one-button activation, you can freely adjust the color of the chest and backlight. Item Type: LED Pet Harness Material: Polyester + LED + Plastic Usage: Pet Light Harness Applicable objects: Suitable for all dog breeds Battery type and model: Lithium battery 503035 (500mAh) (built-in battery) 1 x LED Pet Harness 1 x Charging Cable