Hearing aids come in a variety of different styles, and half-shell and full-shell hearing aids are two common types you should get to know. In this article, we’ll look at the differences between the two styles, including the pros and cons of each, to help you get an idea of which style might be best for you. 

• Half-shell and full-shell hearing aids sit inside the bowl, or concha, of your ears without any components sitting outside of or behind your ears
• Half-shell hearing aids are smaller than full-shell
• Half-shell hearing aids are best for mild-to-moderate hearing loss, while full-shell hearing aids are best for severe hearing loss
• Both styles have pros and cons, including their fit, size and functionality

A hearing aid shell is the outer portion of an in-the-ear (ITE) hearing aid that houses the device’s electronic components. The term “shell” is also sometimes applied to hearing aid molds, which are custom-fitted earmolds that attach to behind-the-ear (BTE) hearing aids—but a mold is not itself a hearing aid. In-the-ear (ITE) hearing aids sit in your ear without any components sitting outside of or behind your ear. They’re custom molded to fit comfortably and snugly, whether they are half-shell or full-shell.

When it comes to a half-shell vs. full-shell hearing aid, there are a few differences. First, half-shell hearing aids are smaller than full-shell. Typically, if you have mild-to-moderate hearing loss, a half-shell hearing aid will work well for you while a full-shell option will work better if you have more severe hearing loss.

However, both options have volume controls and other features that add convenience. Both options also often offer wireless connectivity to smartphones and other devices.¹

¹ “What’s your hearing aid type?” The International Campaign for Better Hearing. June 20, 2019. https://www.campaignforbetterhearing.org/hearing-research/2017/whats-your-hearing-aid-type