How does the hearing aid distinguish the left and right ears?
Customized hearing aids are easier to distinguish between left and right ears, and the outer shell parts have red and blue coding. In the hearing aid industry, red represents the right ear and blue represents the left ear, but the behind-the-ear hearing aid is relatively difficult to distinguish. But there are ways. Since the machines on both sides of the hearing aid are not equipped with a sound tube, the fitter usually adds a small attachment to the outer casing of the hearing aid. It also has a red-blue logo to help the user distinguish between the left and right ears. The sound tube is also different. Hold the hearing aid, and the earplug part can be inserted into the ear canal, so it can be distinguished by the red-blue mark and the direction of the sound tube.
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