Concha Sol™ Hearing Aids are unisex and come in four sizes (0-3) and four colors (Beige, Gray, Nougat, and Black) so you can find your best fit.
The size refers to the length of the receiver wire that connects the speaker to the body of the hearing aid.
In our online store, select your preferred color, then click on the link under "Receiver wire size" to use the Hearing Aid Receiver Size Predictor, which will give you a recommendation for your hearing aid size.