I purchased Cowin E7 Pro headphones on Woot on 11/26/2018. The product has 12 month manufacturer warranty. The headphones volume control started to malfunction recently. I wrote to the manufacturer on Friday, 8/24/19. They immediately replied and pithing a few hours told me that since I bought the product from a 3rd party I have to ask them for replacement. I wrote to Woot on Saturday, 8/25/19, and their reply was: "We're sorry, but it has been more than 270 days since you purchased the product, which means that the window on our 30-day return policy has closed." When I wrote back with the manufacturer reply they answered: "We're sorry that we haven't been able to address your concerns.
We understand that this situation has been frustrating but, unfortunately, we won't be able to offer any additional help with this matter.". So basically - the manufacturer warranty is superseded by Woot's 30 day return policy and any malfunction after that - you are out of luck!