Polaroid Digital AIR 3D, Use And Maintenance Manual

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Hearing aid description
The Digital Superior 3D Polaroid hearing aid is digital, with 4 signal processing
channels, intelligent and adaptive noise reduction system, highly effective acoustic
feedback suppression function.
The Digital Superior 3D Polaroid hearing aid helps the user not only to have a clean
hearing in a quiet environment, but also in a noisy environment.
The product design meets the ergonomics with comfortable and powerful
functions.
Unlike the DigitalAir 3D, the superior 3D offers a single preset use setting.