Treatment Evaluation of Neuromodulation for Tinnitus - Stage A2

Inclusion Criteria: * 18 to 70 years of age * Ability to read and understand English * Willing and able to provide informed consent * Willing to commit to the full duration of the study * Baseline Tinnitus Handicap Inventory (THI) score of \>= 38 points * Subjective tinnitus of 3 months to 10 years * Maximum AC pure-tone audiometry hearing loss of 80 dB HL in any test frequency in the set {2,3,4,6,8}kHz or 40 dB HL in the set {250,500,1000}Hz either unilaterally or bilaterally * Baseline Minimum Masking Level (MML) of 20 to 80 dB HL * Tonal tinnitus Exclusion Criteria: * Diagnosed with objective tinnitus * Commenced usage of hearing aid within the last 90 days * Cases where pulsatility is the dominant feature of tinnitus * Patients whose tinnitus cannot be masked during Minimum Masking Level (MML) assessment * Meniere's disease * Significantly severe Loudness Discomfort Level (LDL, less than 30 dB SL) * Depression or neuro-psychological condition, previously diagnosed or identified from the State-Trait Anxiety Inventory (STAI) with score greater than 120 * Diagnosed with somatic tinnitus resulting from head or neck injury * Temporomandibular Joint Disorder (TMJ) * Current or previous involvement in medico-legal cases * Pregnancy * Oral piercings * Neurological condition that may lead to loss of consciousness (e.g. epilepsy) or is considered to be the dominant feature of the tinnitus, as assessed by audiologist or ENT consultant * Severe cognitive impairment based on Mini Mental State Examination (MMSE, less than 20) * Patient with a pacemaker or other electro-active implanted device * Have used Neuromod Devices products in the past * Participants currently prescribed drugs for a central nervous system pathology, i.e. epilepsy, Multiple Sclerosis (MS), Parkinson's, bi-polar disorder * The site Principal Investigator does not deem the candidate to be suitable for the study for other reasons not listed above * Self-reporting episodes of auditory hallucinations * Abnormal Otoscopy as assessed by the Audiologist, including active Otitis Media, perforation and hearing loss that is identified as completely conductive * Abnormal Tympanometry as assessed by the Audiologist