4 Preset Programs
D19 Personal Sound Amplifier offers 4 preset configurations that are easily adjustable with the touch of a finger.
Normal Setting – Regular listening
Noisy Setting – Reduces background noise (restaurant, supermarket, gym, etc)
Indoor Setting – Decreases low audio frequencies (home, meeting, etc)
Outdoor Setting – Decreases high & low audio frequencies (whistling, feedback, windy day, etc)