NEW UNOPENED Smart collar lets you set and monitor fitness goals based on breed, age, and weight and includes 2 interchangeable batteries, so you're always connected to your pet. Catch potential health issues before they become problems with proactive alerts for troubling behaviors. GPS location alerts can track your pet's location with 15 second updates and send you escape alerts via text or the Whistle app. Subscription is required-plan covers location tracking with GPS, health and fitness monitoring and more. Waterproof design allows the collar to be submerged in up to 8 feet of water. Keep track of your fur-ever friend with Whistle Switch Smart Waterproof Cat & Dog Collar Kit. This smart tracking collar captures your paw-tner's GPS location and monitors his health and fitness activity. You can set fitness goals and track your pet's progress based on breed, age, and weight. Plus, there are proactive alerts to let you know if your bud is having health issues such as excessive itching, licking, drinking or sleeping. Two interchangeable batteries are included so the collar can always be on, and you can always stay connected and informed about your pet's location and health. The sleek, waterproof design is great for furry friends of all sizes. Subscription is required. Size: Small/Medium Neck: 12-18 inches Recommended Weight: 10-55 pounds