100% brand new and high qualityFeatures:Built-in 2600mAh/4800mAh rechargeable lithium battery provides up to 20hrs working time.Compared 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.Small 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.This 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.Minimum 30dB in lowest flow rate. It won't disturb your sleep during it running.Specification:Battery: 2600/4800mAhPower: 1W / 2WLong Battery Life: 70hrsStrong Air Volume: 3L/min / 2x3L/minPressure: 0.018MpaLow Noise: <30dBMaterial: ABSSize: approx.78x61x58mm/3.07x2.40x2.28inColor: As pictures shownOptional Styles: Single Outlet / Dual OutletsQuantity: 1 SetNote:Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank youPackage includes:1 x Aquarium Air Pump1 x USB Cable1 x Manual(other accessories demo in the picture is not included.)