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WhistleBlock Technology Freedom from feedback		Digital AudioZoom Clarity in noise
NoiseBlock Processing Comfortable listening		SoundFlow Standard Automatically ahead

Imagine yourself in a restaurant, at a party or a family gathering. In these situations there is usually a lot of background noise that might make it difficult for you to understand conversations. Certéna uses the only proven method of enhancing speech understanding in noise – directional microphone technology.

Clarity in noise		Zooms in on the speech you want to hear while reducing the noise Automatically activates when needed

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