Completely In The Canal hearing aid, suitable for mild to moderate losses
In The Ear hearing aid, suitable for mild to moderate losses but is slightly larger than a CIC and has different microphones
Full Shell hearing aid, larger than an ITE but often has more capabilities too. This hearing aid is great for people with dexterity issues
Receiver In The Canal hearing aid, this is a very clever little device that is neat and discreet. The receiver wire is hardly visible against the skin
Behind The Ear hearing aid, this is the largest of the hearing aid styles but it is the most capable in terms of sound delivery for bigger hearing losses.