Mobile phone model: Apple 12
System version: ios 14.4.2
Software version: ios 14.4.2.
1, the first operation: you can draw the mobile phone screen and open the mobile phone control center. In the control center of Apple's mobile phone, you can see the icon with volume adjustment, and stroke the volume of the adjustable earphone up and down.
2. The second operation: You can also adjust the volume of the wireless headset by pressing the volume adjustment button on the side of the mobile phone.
3. The third operation: When listening to songs, the lock screen interface of the mobile phone will have the content of song operation, and there is an operation that can adjust the volume. Drag left and right to adjust the volume.
4. The fourth operation: Call Siri directly and order Siri to turn down the sound. ?