BH Tecnovita SonixPlus YU180 Manuel De L'utilisateur page 32

Finally, take hold of the selected handset to begin your session. Apply the
ultrasound gel to the area of the face that you wish to work and move the
handset over it as indicated in the "Application modes" section.
You will see the time countdown in steps of 1 minute
You can pause stop the session by pressing the button start (1), the unit
will turn off. By pressing the start button (1) you will return directly to the
previous session.
When the time counter reaches 00 the unit will stop and emit a beep to
tell you that the selected session has finished and it will turn off.
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