USB Mini Aquarium Oxygen Pump Air Stone Mute Air Pump Aerator for Fish Tank Features: Energy-saving and silent. Using copper as the motor material, the performance is stable. It can be used for oxygenation in fish tanks, outdoor fishing, oxygen supply for seafood, etc. USB power supply, you can get electricity through sockets, power banks, and cars. Equipped with air stone, the air volume is large, stable and uniform. 2 air stone accessory with regulating valve. Description: Size: 8x3.5cm Color: Black/White Material: Plastic+copper Powered by: USB, 5v 1A Power: 1W Power cord length: 90cm Air tube length: 100cm Note: The product does not have a charging function, once the power supply is lost, it will stop working. Package included: 1 x Aquarium air pump