【USB Operation】: 200 liters per hour. Simply connect this aquarium pump to your mobile power supply and you can pump water through the power bank at any time. It is convenient, fast and frees your hands for other activities. 【Stable Performance】: This mini water pump is small, lightweight, efficient, stable and high quality. It is easy to install and use, works quietly and has a long service life. 【High Quality Material】: This small water pump is made of high quality plastic and stainless steel, which is durable, safe and eco-friendly. The pumped liquid is not contaminated. When in operation, the machine is completely silent and does not malfunction. 【Versatile Applications: This mini self-priming pump is suitable for any harsh environment and is therefore ideal for home, garden and outdoor areas. It can be used for water cooling and circulation, aquatic animal maintenance, ponds, fountains, hydroponic systems, irrigation systems and other aquatic environments. [Easy to use and