["Features:\nBuilt-in 2600mAh/4800mAh rechargeable lithium battery provides up to 20hrs working for time. \nCompared to other battery aquarium air pumps, this kind of rechargeable function free you from replace the battery, you can charge it with a laptop, a wall charger, or a power bank, save your money and eco-friendly. You can take it for outdoor fishing, fish transportation and power outages, etc.\nSmall air pump, but equipped with powerful power can generate a large amount of aeration, put out a ton of air bubbles via 1 or 2 air outlets and provides a sufficient amount of water circulation in your aquarium.\nThis quiet air pump is perfect for both freshwater and marine aquariums, great to be used for all types of tanks. excellent emergency aquarium oxygen pump.\nMinimum 30dB in lowest flow rate. It won’for t disturb your sleep during it running. \n\nSpecification:\nBattery: 2600/4800mAh\nPower: 1W / 2W\nLong Battery Life: 70hrs\nStrong Air Volume: 3L/min / 2x3L/min\nPressure: 0.018Mpa\nLow Noise: <30dB\nMaterial: ABS\nSize: approx.78x61x58mm/3.07x2.40x2.28in\nColor: As pictures shown\nOptional Styles: Single Outlet / Dual Outlets\nQuantity: 1 Set\n\nNote:\nPlease allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.\nDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\n\nPackage includes:\n1 x Aquarium Air Pump\n1 x USB Cable\n1 x Manual\n(other accessories demo in the picture is not included.)"]