Keep Your Dog Safe & Visible: Our light up dog harness is designed to provide 360° bright light, making your dog visible up to 550 yards away. This greatly improves your pet's safety and helps you spot them easily, even in low-light conditions. Soft and Comfortable: This light up dog vest harness is padded on the front and back for maximum comfort. It's also lightweight, so your dog won't feel weighed down when wearing it. USB Rechargeable: The LED dog harness is easy to charge using a USB cable. With a large battery capacity, it can last up to 5-11 hours on a single charge, making it perfect for long walks, hikes, and other outdoor activities. Three Different Modes: Our light up dog harness has three different modes - flashing slowly, flashing fast, and constant glowing - which are easily switchable with the press of a button. This makes it easy to use during walks, runs, or backyard playtime. Fully Adjustable: The light up dog harness is fully adjustable, with a neck size of 9.4"-16.5" and a chest size of 13.8"-24.4". If you have any questions or concerns, our customer service team is available 24/7 to help you find the right size and provide a satisfactory solution. PcEoTllar Light Up Dog Harness, No Pull LED Dog Vest Harness, Rechargeable Adjustable Lighted Dog Harness for Puppy and Small Medium Dogs