Thanks for shopping! BiofeedbackZone.com, Web Ideas International Inc. 4335 Pheasant Ridge Drive NE, Suite 224-110 Blaine, MN 55449, U.S.A. P: (651) 494-3977 F: (484) 952-1227 support@biofeedbackzone.com Please contact us during normal business hours. If you contact us via e-mail, we do usually reply within 12-48 hours. Thank you!