What is the child lock function of the Xiaomi Smart Pet Fountain 2?

The child lock function on the Xiaomi Smart Pet Fountain 2 prevents accidental operation or changes to settings by locking the controls. This is especially useful in households with young children or pets that can tamper with the pet fountain.
To enable the child lock function on the Xiaomi Smart Pet Fountain 2, please refer to the following steps:
1. Open the Mi/Home/Xiaomi Home APP >> select the Xiaomi Smart Pet Fountain 2 >> tap the three-dot at the upper right corner >> enable [Child lock];
2. Press and hold the power button and Wi-Fi button simultaneously to enable/disable the child lock.