KERN & SOHN KET-TM - Manual (Page 71)

KEN-TM / KET_TM-BA-e-1420 71
7.8.3 Signal tone when pressing button
Every time a key is pressed, a brief audio signal will be sounded for confirmation.
This function can be enabled / disabled as follows.
Tap
< Beep >.
The menu will appear.
None Audio signal disabled
Button Audio signal will be sounded
every time you press a key.
Sensors The sensor confirms that it has
detected and executed a
command by sounding an audio
signal.
All Audio signal will be sounded
when keys and optic sensors are
operated.