230:
Press SETUP on the keypad
Go to option 4. OTHERS
Scroll down to change the volume and/or sound tone of the InBody unit.
520 and 720:
Press SETUP on the keypad
Go to option 6. OTHERS
Scroll down for the options to change the volume and/or sound type
370:
Press SETUP on the top left corner of the main screen
Press SETTINGS and go to Language Sound Type/ Volume
570/770:
Press the ADMINISTRATOR MENU button on the bottom left corner
Press option (01) Date/Time/Units/Password/Volume
