Micro-CIC (Completely-in-the-Canal)
The smallest of all hearing instruments, these are designed to hide more completely in the ear canal and are virtually invisible when worn.
ITC (In-the-Canal)

Still small and discreet, these models are easy to handle and offer the user additional control functions.
ITE (In-the-Ear)

This size features the widest selection of user-controlled functions and comfort features.
BTE (Behind-the-Ear)

These fit snuggle behind your ear and are attached to a custom earpiece molded to the shape of your outer ear. There are a variety of styles available within the BTE category including a mini-BTE.