Oxygen Pump Fish Tank Oxygenator Aquarium Oxygen Aerator Pond Aerator Air Pump USB Rechargeable Fishing Aerator with Pipe Air Bubble Stone Description: The oxygen pump with built-in a rechargeable lithium battery for storing energy, thus the oxygen pump works outdoor as well, it can be powered by a power bank, computer, car charger, etc. Suitable for a small-sized pond, outdoor fish tank, etc. Features: [Two Power Supply Modes]In the case of full power, continuous mode up to 15 hours of working time, indirect mode working time of 30 hours. [Large Air Volume]Stable silent oxygen pump with 3L/min or 6L/min air volume, provides a sufficient amount of water circulation in your aquarium. [Quiet]The aquarium air pump is made of ABS thickening plastics, a super silent air pump. [Portable Buckle]Come with a buckle, can be hooked on your bag, fishing box, aquarium when moving. [Widely Applicable]Suitable for a home aquarium, outdoor fishing, air pump back up, aquarium transportation, pond. Specifications: Types: Type 1; Type 2 (Optional) Material: ABS, Electronic Component   Color: White Battery：3.7V, 1100mAh(Type 1), 3.74V, 2600mAh(Type 2)   Power: 1W(Type 1), 2W(Type 2) Tank Size: 30L(Type 1), 30-100L(Type 2) Output: 3L/min(Type 1), 2*3L/min(Type 2) Inermittent work mode: max 30h Continuous work mode: max 15h   Noise: 60dB         Oxygen Hose Length: 1m/3.28ft(Type 1), 2m/6.56ft(Type 2)           Package Size: 12*12*6cm / 4.72*4.72*2.36inch Package Weight: 300g/0.66lb(Type 1);400g/0.88lb(Type 2) Type 1 Package List: 1 * Oxygen Pump        1 * Connector (Red and black random delivery) 1 * Air Stone        1 * 1m Aquarium Oxygen Pipe        Type 2 Package List: 1 * Oxygen Pump        1 * 2PCS Connector (Red and black random delivery) 1 * 2PCS Air Stone        1 * 2m Aquarium Oxygen Pipe        Note: The oxygen-increasing device cannot be placed in water, and the diversion hole cannot be blocked.