Specifications:It adopts advanced air compression system and shock absorption system, multi-stage silencer design, and extremely low noise.The special synthetic rubber component is used, and the pressure and air volume are constant.The structure is reasonable and compact, and the service life is long.It is an ideal air source equipment for all aquariums, aquarium lamps and other products.The power cord is approximately 70cm long.Item Name: Oxygen Pump/AccessoriesMaterial: PlasticEU Plug:Voltage: 220-240vFrequency: 50HZPower: 2.5wAir Pressure: 0.018MpaAir Output: 1.8L/minUS Plug:Voltage: 110-120vFrequency: 60HZPower: 2.5wAir Pressure: 0.018MpaAir Output: 1.8L/minSize: 6.8cm x 9.5cm x 3.5cm/2.67" x 3.74" x 1.37" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:Type 1:1 x Oxygen Pump (Plastic Pipe or Bubble Stone Not Included)OrType 2:1 x 2m Plastic Pipe2 x Bubble Stone (Oxygen Pump Not Included)