USB Aquarium Air Pump, Adjustable Twin Valve Mini Ultra Silent Fish Tank Oxygen Pump with Stone and Double Silicone Tube, Quiet Aerator for

Ultra quiet operation, no disturbance to life—The operating noise is as low as approximately 40dB. It uses a shock-absorbing shell combined with an efficient motor to effectively reduce vibration and working noise. It is suitable for quiet environments such as living rooms, bedrooms, and offices. It can operate continuously for 24 hours without disturbing others. Dual outlet design, adjustable airflow—Dual valve / dual outlet design, can simultaneously drive two bubble stones; built-in adjustment knob, air volume range is approximately 1-3L/min, freely adjustable according to the size of the fish tank and oxygen demand, suitable for different scenarios. Complete set of accessories, ready to use upon opening—The set includes bubble stones, dual silicone air tubes, adjustment valves, etc. Upon receiving, it can be installed and used directly, no additional purchase required, easily completing the oxygenation setup for the fish tank. USB power supply, low power consumption and energy saving—Power supply via USB interface, energy-saving and power-efficient; can be connected to power adapters, computers, charging batteries and other USB power sources, portable and easy to use, suitable for home use, travel, and backup in case of power failure. Suitable for multiple scenarios, compact and versatile—Suitable for freshwater / saltwater fish tanks for oxygenation, can also be used as a small pond air pump, water change auxiliary pump, bubble generator, etc.; compact and mini design does not occupy space, a practical choice for aquarium enthusiasts.