Participants will be recruited via advertisements in a local newspaper and posting of flyers around a local university campus. Participants will be screened through an intake process using the Structured Clinical Interview for Axis I Disorders (SCID-I) to confirm a diagnosis of an anxiety disorder. Comorbid conditions are acceptable, however, an anxiety disorder must be the primary diagnosis. As part of the intake process, participants will complete the Hamilton Anxiety Rating Scale (HAM-A)and the Hamilton Depression Rating Scale (HAM-D17) to establish a baseline. These instruments will serve as the primary efficacy measures. In order to participate, HAM-A scores must equal to or greater than 18 (Moderate Anxiety). Depression will be monitored using The HAM-D17 as depression is a commonly occurring condition with anxiety and the HAM-D17 is also sensitive to anxiety. Current treatment with medications are also acceptable provided there will be no changes in dosage or type during the study. See Inclusions and Exclusions for further information. All participants will pay a fee of $30 to enter the study to cover administration costs and as a way to measure placebo effect. Participants will be assigned a device to take home and self-administer treatment 5-7 days a week. Participants will be required to log their treatment times and dates with logs provided by the researcher. The student population will not be given a take home device but will receive treatment at the Graduate Assistant's Office or Student Care Office.