WEIWEISTORE Aquarium Air Pump, Rechargeable Portable Oxygen Pump with Single/Dual Outlets, Quiet Aerator for Fish Tank up to 30/70 Gallon, Outdoor Fishing, Fish Transport and Power Cut Water Aquarium Pump  (Electrical)

【USB rechargeable & Long-lasting】Built-in 4800mAh rechargeable lithium battery provides up to 70hrs working time(intermittent mode). It’s a perfect tool for fish tank, outdoor fishing, fish transportation and power cut. You can charge it with any devices that has a USB interface. 【Powerful Battery & Strong Air Volume】The portable air pump produces a large amount of aeration for tanks up to 70GAL. In continuous mode, this oxygen pump will produce bubbles continuously. Air flow can reach a maximum output of 2x3L/min. Air pressure can be 0.02Mpa. In intermittent mode, it will pause for 10 seconds after working 10 seconds, which can save energy and prolong the pump’s usage time. 【Energy-saving & Ultra-Quiet Design】 The rechargeable aerator's power is 2W, it’s energy-efficient and won't get overheated while operating. Minimum 40dB in lowest flow rate, ABS thickening body material and four rubber foot stands added on the bottom make sure It produces minimum noise and won't disturb your sleep at all! 【 Easy Operation】When charging, the AC (red) light is on, and the four power lights indicate the current charging power state. It’s easy to switch continuous and intermittent mode by pressing [ON/OFF] button. The pump must be used above water surface. And we includes 2 check valves to ensure if in some case it is used below water surface. 【Accessories】1 x Air Pump, 2 x Air Tube, 2 x Air Stone, 2 x Check Valve, 1 x USB Power Cord, 1 x Manual. Complete accessories to build a basic air pump setup in your tank.