
The perception of ringing or noise in the ear is known as tinnitus. Tinnitus is a common problem which affects about 1 in 5 people in the United States. Tinnitus is a symptom of an underlying condition like age related hearing loss or ear injury. Chronic tinnitus can last for months to years. Tinnitus maskers are medical devices which mask tinnitus by producing sound. The sound produced by tinnitus masker is smoothening to patient's ears. Tinnitus is an internal sound, hence brain cannot ignore it easily. There are four different types of tinnitus; subjective tinnitus (caused by exposure to excessive noise), neurological tinnitus (caused by disorder), somatic tinnitus (related to sensory system) and objective tinnitus (a rare form of tinnitus). Currently, there are no FDA-approved medical methods for the treatment of tinnitus. Tinnitus maskers are sold on the trial basis to let the patient choose a right device for himself or herself. The voice made by tinnitus masker is often called as white noise and pink noise. With the loudness of tinnitus reduced due to tinnitus maskers, it becomes manageable.