The keypad lock feature of a two-way radio, when activated allows the user to lock the buttons so that in case the user presses them by mistake, it does not result in some unwanted action.
This feature is useful when the user carries the radio in a pocket or in a bag wherein there are chances that the buttons could get pressed or channels could get changed by the accident.
Once keypad lock is activated by the user, it will have to be deactivated before channels or any features can be changed.
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