The SmartLink Waterer – Intelligent Water Fountain uses Bluetooth technology to know when your pet, wearing a unique SmartLink Tag that is paired with the waterer, is near and will dispense filtered water from the reservoir through the two-tier waterfall design. This allows your pets to drink clean, running water. To ensure freshness, the SmartLink Waterer will activate the water cycle every 40 minutes. The Bluetooth module in the waterer sends information to your IntelligentPetLink smartphone app to help you monitor: Drinking behavior, frequency and duration; Water temperature; When the water reservoir needs to be refilled; Inventory control management; When the waterer requires attention. The waterer also comes with a SmartLink Tag, a Universal Carbon Filter, and a Two-Year Warranty.