The Switch GPS + Health + Fitness Smart Dog Collar is the perfect accessory for any dog owner. This collar is designed to keep track of your dog's whereabouts 24/7, and it comes loaded with health and fitness features that will help you keep your furry friend in the best possible shape. The collar is compatible with smartphones, and it has a round shape with a black XS/S color. It requires two Lithium Ion batteries that are included, and it measures 6.77 x 5.28 x 2.52 inches and weighs 9.91 ounces. The collar's band is also black, and it is designed for dogs of all life stages. The collar has GPS tracking capabilities and an interchangeable battery, and it is made in Malaysia. This collar doesn't just help you keep track of your dog's location, it also helps you keep them healthy and fit.