Effectively Track Dogs - With the newest Lined pocket design for AIRTAG, this led dog collar can keep a-i-r-Tag from falling or dangling, effectively tracking the whereabouts of dogs to prevent dogs from being lost. In addition to airtag, it can also hold dog ID tags and poop bags, which is more practical. (Note：Airtag is not included.)Protective Artifact for Dog at Night - Our light-up dog collar can greatly protect dogs at night with super bright light and reflective strips. It has 3 lighting modes for you to choose from, fast flashing, slow flashing, and steady glow. Keep your dog highly visible at night, and protect your puppy from being hit by cars, bicycles, or runners.Fully Adjustable&Mesh Bretheable Material - The size of this led dog collar is fully adjustable to perfectly match your puppy. Mesh material can ensure dog welly heat dissipation, breathable & lightweight, your furry baby will not feel heavy when wearing it. Very durable&strong.USB Rechargeable & Large Capacity Battery - It is easy to use a USB to charge this light-up dog collar, the battery capacity is large and the battery life is long. In fully charged, it can last fast flashing for 8 hours/ slow flashing for 12 hours/steady glow for 4 hours.(Note USB is included )Fantastic Lighted Collar for Dogs - Enjoy the fun of going out with your dog, no matter of walking, camping, cycling, or climbing. Chalklit is an attractive and practical option for any animal's master. Feel free to contact us if you have any questions. Product Description Airtag 1. Lining zipper double-layer protection, effectively prevents Airtag falling lost 2. Not easy to be found, others do not know that the dog has been located Dog ID Tag Inset settings. 1. More comfortable. The traditional dog tags are hanging, and they will shake when the dog is moving, causing the dog to feel uncomfortable and obstructed. The dog id tag setting inside the bag of our dog collar can make the dog move freely without restraint. 2. Privacy protection. will not directly expose privacy such as phone numbers to the outside Large size design Can fit dog id tag within 6*3.5cm 2.36"*1.38" Dog Poop Bag Can hold a few pieces Dog Poop Bag for emergency use other other small things that you need