Service policy

We provide technical support and free maintenance for three month,but shipping costs due to maintenance need to be paid.

For some products, if they cannot be matched after ordering, we will ask whether the purchase is correct before shipment.

For some products, we offer slower shipping,  if you want to receive the product quickly, please contact us to resolve.

If you have any problem about the product, you can contact us to deal with it  in time via email (david.chen@ymdkey.com).