The Focus function can help you to hear a person speaking more clearly in front of you when a loud table is sitting behind you at a restaurant. When Focus is on, it detects more speech or sound from in front of you.
Focus is not recommended when outdoors in windy environments, or in situations where full peripheral awareness is required (e.g., walking and cycling, etc.)
Focus On: works by improving the directionality of the microphones in the hearing aids and as a result of this, allows you to focus on the speech or sound in front of you.
Focus Off: When Focus is off, you will be able to hear voices and sounds surrounding you.