Please read our Terms and Conditions under the section "4. WARRANTY DISCLAIMER" that can be found here. Items are only replaced if they are defective or damaged. The following are the warranty periods per area:
If you have ordered the product from one of the countries in the EEA (European Economic Area) or the United Kingdom, you are entitled to a 2-year warranty.
If you ordered the device in the United States or another country outside of the EEA, you are entitled to a 1-year warranty