The LED dog collar is highly reflective and its LED is very bright and easily visible. It is robust, made of a nylon strap, a TPU optical fiber, and a light guide. 30% brighter than other similar products, it improves your cat's or dog's visibility and enhances their safety at night. Recharged with the included USB cable, it only takes one hour for a battery life of 7 to 8 hours. Simply click to switch the light between steady mode, fast flashing, or slow flashing. Waterproof, this LED collar works in all weather conditions. After charging, close the battery cover. Simply attach your pet's Apple AirTag to the collar without worrying about it falling off or getting lost. No additional holder is required. The length of the LED collar is adjustable with the adjustable buckle. The Apple AirTag is not included.