How to turn on the headset notification for Apple mobile phone notification?

In the settings of iPhone, click to enter the headset security option, and slide the dot slide button behind the headset notification to the right to open the notification.

Tools/materials: iPhone 12, iOS 14.5.

1. Open the iphone, click Settings on the desktop, and then click Sound and Touch.

2. In the setting interface of sound and touch, click to open the headset security option.

3. In the headset security interface, click the point behind "headset notification" and slide the slider button of headset notification to the right.

4. The dot behind the headset notification turns green, indicating that the iPhone has successfully turned on the headset notification settings.