Study of Application of Transcutaneous Trigeminal Nerve Stimulation and Sound Fusion Stimulation on Tinnitus

Inclusion Criteria: * adults suffering from tinnitus * Participants must be 19 to 70 years of age, at the time of screening * Patient who suffers from tinnitus symptom more than 3 months and scores more than 18(criteria of mild) in Tinnitus Handicap Inventory (THI) examination * Patients with a hearing threshold of 70dB or less when calculated using the quadrant method in the pure tone audiometry * A person who has no physical or mental restrictions in participating in clinical trial * Those who voluntarily agreed to participate in clinical trials * A person who has no pregnancy plan and has agreed to the contraceptive plan for infertile women during the intervention period of clinical trial Exclusion Criteria: * A person who does not meet the inclusion criteria * A person who has difficulty communicating and conducting examinations. * The disease of the outer or middle ear or central nervous system. * Subjects who have difficulty conducting clinical trials due to intellectual or cognitive impairment * Pregnant or lactating women * A person who cannot understand or read ICF (illiterate or foreigner) * A person who received tinnitus treatment (blood circulation enhancer, tranquilizer, tinnitus masker, biofeedback etc.) within 2 weeks of baseline or plans to receive it. * A person who is difficult to participate in a clinical trial according to the researcher's judgment. (e.g., heart-related problems, seizure, epilepsy. Patients transplanted metal or electronic device in head \& neck. Patient suffering from unknown pain. Patients who are warned not to use out clinical trial device or is prohibited from using it.)