[Energy Saving] Aquarium oxygen pump is rated at 1.5W, which is energy saving and will not overheat when running. Provide a healthy environment for your fish. [Ultra Quiet] 40dB aquarium oxygen pump, very quiet. There are 4 non slip rubber feet on the bottom to prevent sliding and reduce noise. You can sleep close to it. [Small And Portable] Mini fish tank oxygen pump, palm size, easy to carry, can be used indoors or outdoors, also can be used as a fishing oxygen pump. [Pure Copper Motor] Fish tank air pump, all copper high frequency voltage stabilizer transformer, low resistance, reduced consumption, stable oxygen supply. [USB DC Powered] Plug in aquarium air pump, which can be plugged into a power bank for outdoor use. When the current is interrupted, it will no longer work.