Description: Built-in 2000mA rechargeable lithium battery, with convenient USB charging, you can charge it with a car/wall charger, laptop computer, or a power bank, very easy and eco-friendly. Can generate a large amount of aeration, increase oxygen and offers plenty of water circulation in your aquarium, no longer have to worry about the caught dead due to no supply. can be mixed at any time, do not worry about the shore is too high to get the water, after mixing , the remaining water can be used to wash hands at any time, clean and convenient. filter, make the extracted water more clean and clear. Can also change the water, make sewage out of the barrel. There are three LED lights, with pumping function, hands free, easy to see how much water you are adding. Great for both freshwater and marine aquariums, perfect to be used for all types of tanks. Small and portable for travel outdoor fishing, transportation and so on. Specification: Name: Pumping and oxygenizing machine Function: oxygenation, pumping, lighting Model: NG207 Electricity: 2000mA Air volume: 3.0L/min Water volume: 1.0L/min Host size: 12*7*4.5cm Host weight: 0.21kg Pumping height: 240cm Hose length: 240cm Charging power supply: 240V-50Hz Pumping life: 2h Oxygenated battery life: 8h Lighting life: 48h Package Includes: 1 Piece Air Water Pump Note: 1.Color might be slightly different due to the color calibration of each individual monitor. 2.Please allow the tiny measuring deviation due to manual measurement. 3.Thanks for your understanding and enjoy your shopping moment!