Etymotic Research warrants all products against defects in material or workmanship for a period of either one or two years, depending on the product, from the date of original purchase from an authorized Etymotic distributor or reseller. Etymotic will replace the defective product at its option if returned within the warranty period to our service facility in Elk Grove Village, IL. This warranty is in lieu of all other warranties, expressed or implied, including, but not limited to, any implied warranty of merchantability or fitness for a particular purpose. Due to the design and manufacture of most Etymotic Research consumer products, a repair option* is not available.