VTech VM321-2 Manual - Manual (Page 29)

Parent unit settings
23
Sensitivity
You can use the parent unit to change the sound sensitivity level of
the baby units from Level 1 to Level 5 (Maximum). The higher the
sound sensitivity level is set, the more sensitive the baby unit is in
detecting sounds for transmitting to the parent unit. The sensitivity
level is preset to Level 3.
If you want the baby unit to be very sensitive in detecting sounds, you may set
the sensitivity level to Level 5 (Maximum), so that the baby unit will always
detect any sounds including background noises for transmitting to the parent
unit. If you want the baby unit to be less sensitive in detecting sounds, you may
set the sensitivity level to a lower level ( Level 1 to Level 4), so that the baby
unit will transmit sounds to the parent unit only when your baby is very noisy or
crying loudly.
To set the sound sensitivity level of the baby unit:
Press MENU/
SELECT
when the parent unit is not in use.
Press or to choose SENSITIVITY, then press
MENU
/SELECT or .
Press or to choose a desired baby unit or all baby units, then press
MENU
/SELECT or .
Press or to scroll through the choices, then press
MENU
/SELECT to
confirm your selection. You hear a confirmation tone.
T o enter the sensitivity menu of the parent unit, the baby units must be
turned on .
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2.
3.
4.