This larger capacity pet water dispenser has a ultra-quiet pump making it super silent when running with a sound level of <30db so it will not affect your sleep at night. This three lite water dispenser has a LED lighting system that will let you know when the water level is low. The blue light is on during normal working time when water level is adequate and when water level is low the red LED light comes on to alert you that it needs more water. The three liter capacity provides enough water for about a week. The dual-core triple-layer filter removes about 99% impurities which will provide clean and fresh droning water for the pet at all time. The water dispenser is made of high-quality PP resin material which is BPA free. The water disperser only needs cleaning about every two weeks and that is all of the maintenance that is need. The simple quick-release design provides for easy cleaning. The power consumption is 5v making it an energy saver. Great for cats and small breed dogs.