Extremely quiet & intelligent pump with indicator light: The pump is whisper-quiet and stays below 40 decibels. Low-voltage pump is reliable and usually lasts 2.5-4 years. Water level window with LED Light reminds you adding water in time during the day or at night. It prevents the pump from running dry. Stainless steel top pet fountain features LED light that will decorate your room in the evening. Circulating filtration system: The circulating filtration system uses a replaceable round filter to purify the water, remove hair, dirt and food particles. The round filter is composed of cotton layers, coconut shell activated carbons and ion-exchange resins. It provides fresh clean water to your lovely pets. Encourages drinking: 360 multi-directional streams aerate the water for added oxygen and freshness. A source of running water encourages pets to drink more rather than still water. Hydration helps prevent your pet from urinary and kidney diseases. This fountain has 3 different drinking modes. It provides more options for your pets and attracts them to drink more water. Assemble and dissemble: Wonder Creature pet fountain only takes a few minutes to set up and disassemble for cleaning and maintenance.