How to set the volume of Apple mobile phone?

There are several ways to adjust the volume of Apple's mobile phone: 1. There are volume keys on the left side of the body of Apple's mobile phone, with the upper key being the volume increase key and the lower key being the volume decrease key; 2. Turn on the phone settings-sound, and slide left and right to adjust the volume; 3. When the phone is locked, slide up the phone screen, open the control panel, and adjust the volume; 4. In the state of using headphones, you can also adjust the volume by adjusting the "+"and "-"keys of headphones. Other introductions of Apple's mobile phone volume: ringtone volume: ringtone volume mainly controls mobile phone ringtones and notification ringtones. Multimedia volume: Multimedia volume mainly controls the sound output of games, videos and music. Methods for adjusting the volume of other iOS devices: 1. Adjust by buttons. 2. By hiding the slider in the panel. 3. By setting-the slider in the sound. Method 1 operating steps: 1. Enter the iOS system desktop. 2. Press the Volume+key to turn up the sound and observe the change of the indicator on the screen. 3. Continue to press the Volume+key and observe the indicator change. Method 2 operating steps: 1. Enter the iOS system desktop. 2. Slide the screen up from the bottom of the screen to open the hidden panel. 3. Change the volume by adjusting the slider position (you can and can only change the video volume). Method 3: 1. Go to the iOS desktop and click Settings. 2. Click the sound. 3. Find the white slider in the ringtone and reminder. 4. Move the slider to change the volume of ringtones and reminders.