Get the latest and advance digital hearing aids in Patna. A behind-the-ear hearing aid hook over the top of your ears and rests behind the ears. This type is appropriating for peoples of all ages and those with almost any type of hearing loss. A tube connects the hearing aid to a customs earpieces called an earmold that fits in your ear canal. Get the latest and advance digital hearing aids in Patna. A behind-the-ear hearing aid hook over the top of your ears and rests behind the ears.