Thank you for visiting Allevia Health's ebay store, we are happy to serve you. We are the Authorized Alpha-Stim Distributor in Oregon & Washington. Please call us with any questions at 800-684-9343. Please note that ebay policy does not allow sales of Alpha-Stim units. For free printed instructions for specific areas of pain, and for the most comprehensive source of information about the Alpha-Stim, please visit https://alleviahealth.com. We look forward to hearing from you.