Due to the nature of the custom-fit manufacturing process, refunds are not accepted.
Our standard manufacture's warranty covers manufacturing defect up to 3-years after purchase. Take note that the shape of your ear canal may change due to growth / aging, and your CIEM may need re-shelling after 2-3 years from the manufacturing date.
We will accept refit-claim resulting from poor fitment within the 30 days of delivery. Please make sure to contact us via support@adv-sound.com to begin refit process.
Our warranty policy does not cover re-shelling after the initial 30 days from the delivery.