This is a single-site, prospective, non-randomized and open label study to investigate the feasibility of home-use CVS for the prevention of episodic migraine headache and specifically to better understand what type of waveform to apply.

Inclusion Criteria:

• A history of at least four, and not more than fourteen total monthly headache days of which between four and nine were migraine headache days. (Note: Patients were permitted continued access to migraine abortive medications and were being treated at the Duke University headache clinic.)
• A history of some responsiveness (incomplete) to at least one and a maximum of two prophylactic pharmaceutical therapies (utilized concurrently);
• The investigator must have confidence in the patient's ability to reliably complete and return the Daily Headache Diary.
• Subject must be at least 18 years of age.

Exclusion Criteria:

• Individuals who were pregnant, who had a history of cardiovascular disease, who worked night shifts or who had vestibular migraine, menstrual migraine, post-traumatic migraine, a history of unstable mood disorder or unstable anxiety, moderate or greater hearing loss or a history of traumatic brain injury.
• A history within the last six months of tobacco use, narcotic or barbiturates use or experiencing one or more analgesic rebound headaches.