8:00 AM - 5:00 PM CST, Monday - Friday
Phone: 847-228-0006
Toll-free 1-888-Etymotic (1-888-389-6684)
Fax: 847-228-6836
Etymotic Research, Inc.
61 Martin Lane
Elk Grove Village, IL 60007 USA
Customer Support email: customer-service@etymotic.com