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|DOES EVERYONE NEED TWO HEARING AIDS?||
Localization - knowing where the sound came from - is only possible with two ears, and just about impossible with one ear. Localization is not just a sound quality issue; it may also be a safety issue. Think about how important it is to know where warning and safety sounds (sirens, screams, babies crying, etc.) are coming from. Using both ears together also impacts how well you hear in noisy environments because binaural hearing permits you to selectively attend to the desired signal, while squelching or paying less attention to undesired sounds such as background noise.