4.4 Enabling/disabling the keypad lock
The keypad lock deactivates all keys on the device. The timer function
of the device continues to function.
Slide the HOLD switch up into the HOLD position to lock the
keypad of the device.
The lock symbol Z appears on the display.
Slide the HOLD switch down to the Off position to disengage the
4.5.1 Connecting the headphones
• Set the volume to a moderate level and do not use headphones
to listen for excessively long periods of time. Exposure to intense
sound can cause hearing damage. Observe the Hearing safety
(see also chapter 1.1.2 Hearing protection, page
Turn down the volume of the device before you plug in the
Insert the stereo jack into the headphone connection EAR on the
top of the device.
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