Our automatic features an advanced four-stage filtration system and an adjustable water pump, so your pet can enjoy clean water all day long Our has a large capacity and can hold 3L of water. By filling once, refilling is not required for several days Quiet pet water dispenser that allows low decibel operation and no noise Our is removable and easy to clean This automatic water dispenser is via USB and is very suitable for households with pets. Specification: Item Name: Water Dispenser Capacity: 3L Features: circulating water, quadruple filtration, flow regulated pump Size: . 17.9 cm x 17.9 cm x 13 cm Updated version come with anti-dry pump. The anti-dry pump has a light. The blue light lights up when water is present, and the red light when there is no water. If there is no water, the pump stops working. Colour: As Shown Material: PP Package Contents: 1 x water dispenser Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.