The PetKit Fit P2 Activity and Sleep Monitor is a 1.2" wide wearable device that collects information about your pet's activity and sleep patterns for your reference. Tailor your pet's feeding schedule, calorie intake, daily exercise, and more with this advanced monitor. Wearable monitor reports pet activity and sleep patterns Allows precise tailoring of daily calories and exercise to fit pet's needs Automatic analysis and convenient app reporting The Fit P2 introduces a whole new way to keep track of your pet even when you're not around. Using precise accelerometer technology, the monitor tracks your pet's exercise, rest, food consumption, and more, then analyzes the data to give you a full behavior profile and recommended actions for the day. The data is stored in the Cloud and accessible via mobile app, providing an exact picture of your pet's mood and daily health needs. The device attaches to your pet's collar in seconds. The monitor is made of sturdy, light, eco-friendly magnalium, with a smooth, scuff-resistant surface and water- and dust-proof seals.