V.20210317A
12
Key Lock
To enable key-lock
：
Press and hold the
Volume –
key for
2 seconds, the word “LOCKED” will
show on the OLED screen.
To disable key-lock:
Press and hold the
Volume –
key for
2 seconds, the word “UNLOCK” will
show on the OLED screen.
Change Font Size
A. Shortcut
：
Press and hold the
key for 2 seconds.
DAB
Locked
DAB
Unlock
Shows it is locked
Any Situation
Press & hold
“–“ for 2sec
Any Situation
Press & hold
“–“ for 2sec
Shows it is Unlocked
Lock / unlock:
press and hold “
-
”for 2
seconds
Press and hold
“
+
”for 2 seconds
DAB
CRo D-dur
Press & hold
“+“ for 2sec
CRo
Big font is Off
Big font is On
DAB
CRo D-dur
Press & hold
“+“ for 2sec
CRo
Big font is On
Big font is Off
