These hearing aids fit into the ear canal. They are only slightly larger than the completely-in-the-canal hearing aid but smaller than the in-the-ear hearing aid. The ITC style is available in the programmable digital hearing aids.
This type of hearing aid doesn’t always suit people with steeply sloping hearing losses and normal or new normal low frequency hearing. They often make people feel they’re blocked (occluded) and people may experience reverberation in their voice or feel they are speaking down a tunnel.