ITC (in the canal, half shell) is about half the size of the ... and resembling a Bluetooth earpiece. BTE (behind-the-ear) hearing aids are bigger and bulkier but are often best suited for people ...

At its most simplistic, a hearing aid should just be a battery ... including a molded shell for the user’s ears, and difficult assembly. BTE is far more accessible, as is a headphone or earbud ...

This in-the-ear hearing aid model is discreet ... including completely-in-canal, half-shell, full-shell and mini-canal styles. Each design includes a custom battery, push-button and telecoil ...