What is the drainage function on the Redmi Watch 5?

The drainage function can be used when the speaker of the watch is flooded after swimming or in daily life. The principle of the drainage function is to play a sound of a specific frequency to make the speaker vibrate, and use the vibration to drain the water that has invaded the speaker, thus protecting the speaker from being corroded by water.
To enable drainage function on the watch, please refer to the following methods:
1. Swipe up on the homepage of the watch to enter the control panel and tap the drainage icon;

2. After the swimming, the watch will start the drainage function automatically.