Body Worn Hearing Aids Body Worn Hearing Aids consist of an ear mold connected by a cord to a separate amplification system. The case is about as big as a deck of cards and clipped onto the wearer’s belt or waistband. They provide good amplification and are ideal for serious hearing loss, but have mostly been replaced by smaller BTE units. Behind the ear (BTE) hearing aids BTE hearing aids have custom-made ear molds attached to a curved tone hook that fits behind the ear. They are fairly durable and can be connected to other assistive devices, such as FM systems. Newer models are smaller and less noticeable than ITE aids, and often come in skin tones for a more discreet look. They are ideal for children and patients with mild to profound hearing loss. In the ear (ITE) hearing aids ITE hearing aids are fitted into the concha, the outer opening of the ear. They are usually custom-made for a secure fit. They are larger than BTE aids and are usually visible from the front. They work best for mild hearing losses, but may cause a squealing or whistling sound in severe cases. They are not advisable for children, because they have to be frequently refitted to adjust to growth.
In the canal (ITC) hearing aids
ITC hearing aids are placed within the ear canal, with only a small part visible on the lower half of the ear. Smaller variations include mostly in canal (MIC) and completely in canal (CIC), which are visible only when one looks directly into the ear. They are used for mild to moderate hearing impairment, although CICs can cause a plugged-up effect in people with low-frequency hearing. This is called the “occlusion effect” and is characterized by the resonating of sounds within one’s head. | 
