[Smart controller]: multi-speed control, one-button power supply, non-dirty hands, more convenient, children can also operate. [Energy saving and environmental protection]: Heart-saving pump, frequency conversion design, energy saving, button design, intelligent controller adjustment, worry and effort. [Dry burn protection]: No water or blocked rotor, the motor inside automatically cuts off the power to prevent dry burns. There is no need to worry about running out or running out of water in your aquarium when you are going for a short trip. [Low noise]: Running at a quiet level, the indoor motor produces no noise, giving you a quiet environment even with one in your bedroom. [No disassembly of tools]: easy to install, easy to clean; dual use of fresh water or sea water; amphibious.