Duration of study period (per participant): Screening period (-7~0 days), Intervention period (30 days) Patient needs to visit site at least 3 times (Screening, V1, V2). V1 can be done with screening visit. Tele-visit should be done on day 15.
This study aims to evaluate the efficacy of applying transcutaneous trigeminal nerve stimulation (NUEYNE-T30, NUEYNE-T100) and sound fusion stimulation on tinnitus.