volumepanelios

GotoSettings>Sounds&Haptics>HeadphoneSafety.·TurnonReduceLoudSounds,thendragtheslidertospecifythemaximumvolume.,2020年3月4日—VolumeControlProletsyouchoosetheperfectvolumelevelsothatwhatevermusic,podcast,oraudiobookyou'relisteningtosoundsjust ...

參考資訊如下
Adjust the volume on iPhone

Go to Settings > Sounds & Haptics > Headphone Safety. · Turn on Reduce Loud Sounds, then drag the slider to specify the maximum volume.

Volume Control Pro on the App Store

2020年3月4日 — Volume Control Pro lets you choose the perfect volume level so that whatever music, podcast, or audiobook you're listening to sounds just ...