All items are final sale. However, if you receive a defective item, we offer a one-time exchange with photographic evidence. Please do not use a return address in China—returns should be sent to our Korea location or handled through an approved return service.

If you are experiencing technical difficulties with your device or software, please email us or contact support for assistance.

If you encounter any manufacturing defects, damage, or receive the wrong item, please contact us as soon as possible, and we will evaluate the issue to make it right.