Multiple Modes Adjustable And Energy Save:The aquarium air pump can provide continuous air supply mode; Intermittent air supply mode; Fish feeding mode; It is also can control 2 outlets air supply modes; Control a separate outlet air supply mode (A or B outlet supply) . According to your needs to save energy. Rechargeable Aerator Efficient And Poweful: USB-C or 110V power supply, Under battery power, it can operate for up to 60 hours.6.5W, 0.022MP, providing up to 160 gallons of stable airflow per hour. Suitable for fish tanks up to 20-600 gallons. The deepest water depth for air can be 1.5m. Ultra Quiet Aquarium Air Pump: Noise of about 25 DB, fully enclosed pure copper motor, double layer sound-insulation of ABS shell, almost unnoticed when the fish tank air bubbler is working! Safe And Easy To Operate:Automatic switching of AC/DC,our fish tank air pump can use both AC and DC electricity. It can always be plugged into an AC power source to work, and when there is a power outage, it will automatically switch to a lithium battery power source to continue working, without worrying about a sudden power outage. Aquarium Aerator Packaging: Rechargeable air pump * 1, air pipe * 2, gas stone *2, check valve * 2. Typ-C charging cable * 1, instruction manual * 1. The aquarium air pump kit is designed to meet your needs as much as possible.