This collar is designed for AIRTAG. After attaching the AIRTAG to the collar and putting it on your pet, the GPS will work, allowing you to track your pet and making it easy to find them. It also securely fastens, making it difficult to lose. (Compatible with IOS only) Note: The product does not include an airtag; you will need to purchase the airtag separately. Easy to install: Easy to assemble with a mechanical lock, making it difficult to fall off. Once installed, it's almost never necessary to remove it. You only need to remove the collar when bathing your pet. Comfortable to wear: This collar is made of soft, breathable polyester material that is gentle on the skin, has a good feel, and is durable. It also incorporates a reflective design, allowing you to find your pet even in the dark, providing peace of mind at night. Collar Size: 1.5*22-34cm Weight: 19g The length is adjustable and can accommodate pets with a neck size within the range of 22-34cm. Airtag GPS pet tracking device, airtag collar, cat collar, safety collar, dog and cat collar, smartphone compatible collar, cat collar, GPS pet collar, durable and long-lasting. It also incorporates a reflective design to prevent loss (compatible with IOS only). 45-1589.