1Removable pump head for easy maintenance and repairing. 2Manual mode, loop mode, power-off memory function. 3Back hanging hole design, easy to hang, easy to dissipate. 4Power off during manual watering or intelligent circulation watering, and resume normal operation after power is restored. 5The peristaltic pump cuts in and out of the water to prevent siphoning and prevent water leakage. 6During the intelligent cycle watering, the left button (interval time) and the right button (working time) are locked, free from outside interference.