Joke Collection Website - Public benefit messages - Where can I turn the volume of ivviM40 mobile phone?

Where can I turn the volume of ivviM40 mobile phone?

Vivo mobile phone can adjust the sound of the mobile phone by pressing the volume up and down keys on the desktop of the mobile phone, and input the settings in the mobile phone-the volume of ringing tone, short message and alarm clock can be adjusted in the sound.

Operating Steps: Find the settings on the mobile phone desktop, press enter to find the sound, and press enter to adjust the volume of the mobile phone.