Ultimate Pet Hydration Solution: High quality stainless steel water fountain, 5-Pack Filter The dog cat smart water fountain with wireless pump. We have eliminated the wire submerged in water with this wireless pump so that your pet can drink more safely. And the detachable wireless pump makes it easier for you to clean. We upgraded the quality of this pump, it is very quiet and less than 20dB. 5-Pack Filter for Extended Use: Long-lasting filters provide fresh, clean water for up to 5 months. APP Control: You can check the working status and filter situation, also you can switch the working mode through the PETKIT app(connected via Bluetooth)