2:5 Speech microphone (Fig. E)
For maximum noise cancelling, the speech microphone should be positioned close to
your mouth (<3 mm).
3 USAGE/FUNCTIONS
3:1 Inserting batteries
Remove the battery compartment lids and insert the batteries (2xAAA). The battery
polarity must correspond to the marking in the battery compartment. The lids must be
pressed all the way down for the sealing to work. Low battery level is indicated by a
ghost voice message “low battery”, repeatedly.
3:2 Switching the headset on and off
Press and hold the [+] or [-] button for two seconds to switch the headset on or off.
The current setting is always saved when the headset is switched off. The headset is
automatically powered off after two hours of no active functions. This is indicated by a
ghost voice message the last minute before the headset switches off.
3:3 Volume
The volume setting adjusts the level-dependent function for ambient sound. It is adjusta-
ble in 4 levels and a silence mode. Silence mode is confirmed by a voice message. The
volume is limited to 82 dB(A).
3:4 Menu
Press and hold the [+] and [-] button for one second for the menu. To step through the
menu, press the [-] button briefly. The menu steps are listed below as 3:5-3:14. At each
menu step the [+] button is used to change the setting and, if available, step through the
available settings. A ghost voice message confirms each menu step, followed by the cur-
rent setting. Also changes are confirmed by a ghost voice message. After a few seconds
of no activity, the menu returns to volume mode. By pressing the [+] and [-], the volume
setting can be instantly reached at any stage of the menu.
3:5 Equalizer
The Equalizer adjusts the tone for the level-dependent function for ambient listening. It is
adjustable in four levels: Low, Normal, High and Extra High.
3:6 Factory reset
Resets all menu settings to the factory default values. This setting needs to be confir-
med by pressing the [+] when the ghost voice says “confirm factory reset”.
3:7 Advanced settings
The advance settings menu includes the additional settings described in 3:8-3:14. The
advance settings menu steps are added to the normal menu steps when activated. It is
automatically de-activated when returning from the menu.
3:8 Release time
The release time setting adjusts the time before the limiter for the level-dependent
function opens after activation. It is adjustable in two levels: Fast and Slow.
3:9 Balance
The balance setting adjusts the volume balance between the right and the left ear. It is
adjustable in 7 levels: Center, Right/1, Right/2, Max right, Max left, Left/2, Left/1.
3:10 External input sensitivity
The external input sensitivity setting adjusts the attenuation of the input signal applied
on the headset cable input (A:13). It is adjustable in three levels: Low - Medium – High.
Setting Low means the gain of the input signal applied on the external input is low, while
setting high means High gain of the signal.
