[Double-layer sound insulation design]: The plastic inner cover envelops the movement, solves the source noise problem, and has better mute effect [Equipped with non-slip shock-absorbing feet]: stabilizes the body, reduces vibrations and noise, and the soundproofing chamber provides pleasant running stability [The air volume is 2 .5L / min, which can meet the needs of large and small aquariums]: & nbsp; The air volume can be adjusted by yourself [Powerful all-copper movement]: stable performance, energy-saving silica gel [The oxygen pump is used to increase the oxygen in the aquarium]: which can meet the needs of large and small aquariums. It is suitable & nbsp; and is equipped with an adjustable knob to adjust the air volume by yourself.
