Hearing aids are fitted to the uniqueness of each ear, which means your left hearing aid is programmed differently from your right. In order to easily identify whether it is the left ear or right ear instrument, colour markings may be applied on the shell of in-the-ear styles:
Left: blue shell, text or dot.
Right: red shell, text or dot.
It takes time to adjust to a new hearing aid, but it does not have to be hard. See our advice on how to get the full out of your hearing aids.