How to set up a mobile phone traffic reminder?

Take OPPO R9S mobile phone as an example, the setting method is as follows:

First turn on the phone, find the "Settings" item on the desktop, and click Enter.

2. After entering the settings, find the item "Dual Card and Mobile Network" and click Enter.

3. After entering the dual card and mobile network, find the item "Daily Traffic Reminder" and click Enter.

Fourth, after entering, select the traffic reminder amount and check it. When the traffic usage reaches the reminder amount, the mobile phone will issue a reminder warning.