slide 4 of 5, Behind-the-ear hearing aid,
Most parts of the behind-the-ear (BTE) hearing aid are in a case that fits behind the ear. The case is connected to a plastic ear mold by a clear tube that wraps around the top of your ear. BTE hearing aids can be made with special features. These include a telecoil that helps with hearing during phone calls and a directional microphone system that can help you hear voices in a noisy room. BTE hearing aids are used for all degrees of hearing loss, especially very severe hearing loss. They may be better for children for safety and growth reasons.