8 9Putting your hearing aids on your earsYour hearing aids may be color-coded with anindicator that is visible when the battery door isopen: red = right ear; blue = left ear.Hearing aids with domes1. Hold the wire where itattaches to the dome andgently push the dome intoyour ear canal. The wireshould lie flush against yourhead and not stick out.2. Place the hearing aid overthe top of your ear.3. Place the retention piecein your ear so it rests at thebottom of the opening ofyour ear canal.1.2.3.Note to hearing healthcare professionalDomes should never be fitted on patientswith perforated eardrums, exposed middleear cavities, or surgically altered earcanals. In the case of such a condition, werecommend to use a customized ear mold.LabelingThe serial number and year of manufacture arelocated inside the battery door.