Size: 16cm * 12cm Dual Power Supply: Battery Operated Cat Water Fountain plug-in and rechargeable power supply, built-in 1000 Mah battery, high endurance, in the case of a full charge can work for up to several weeks. Wireless Pet Fountain: Cat water fountain is safe and convenient, can be placed anywhere your pet likes, so your pet can drink fresh water anytime, anywhere. Smart Infrared Sensor: Wireless cat water fountain designed with an infrared sensor, the water in the cat water switches from static to dynamic when the pet is entering the 120° sensing zone. Flowing Water Design: Cat water fountain battery operated has 3 different fountain modes to suit different cats. The flowing water evokes the cat's nature and makes your pet enjoy drinking water, keeping them healthy and free from urinary and kidney diseases. 360°Transparent Water Tank: Cat smart water dispenser with a clear water bowl and a bowl clearly marked with a scale, automatic cat water fountain provides a better view to monitor your pet's overall water intake and to refill your pet's water