1.The circulation system helps provide maximum oxygenation for fresher, better tasting water and entice dogs and cats to drink more water. The pump will shut off automatically, when it senses the lack of water in the fountain bowl 2.Monitor Your Pet's Water Intake includes a water level window and it offers a better view to monitor the overall water consumption of your pet. The LED Light will notice you to add water in time. It is a safe and efficient way to manage pets water consumption without constantly watching your pet 3.Smart LED Indicator LightEmbedded Intelligent LED lights can easily remind you the water dispenser working status. It will indicate water shortage and remind when you need to replace the filter. 4.Quadruple Filtration System pet fountain is equipped with high performance purifying filter which is composed of a cotton layer, a coconut shell activated carbon and ion exchange resin. The filtration system provides healthy, fresh and oxygen-enriched water for your cats, dogs and small animals 5.Ultra-Quiet and Auto Power off PumpThe pump is ultra-quiet and has low energy consumption, which gives you and your pets sweet sleep. You can hardly hear the noises.