Baofeng BF-P618 Manual page 23

Keypad locked: allow a user to enable or disable keypad lock via menu.
●
LED indicator: allow a user to enable or disable all indicators via menu.
●
Squelch level: this function is used to increase the SQ level when interference from surroundings is
●
high to avoid interference. The SQ level can be set between 1 and 5 and is level 3 by default. A user can
set the SQ level according to the operating environment and requirements.
Mic level: allow a user to set the mic level via menu (level 1-9)
●
VOX level: allow a user to set the VOX level via menu (level 0-9)
●
LCD contrast: allow a user to set LCD contrast via menu. (level 1-5). It is level 2 by default.
●