We advise that upon arrival of your ordered item, please check the item right away. Ask the delivery man to wait for you while you check the item. If defective(May be logistics violence or logistics personnel stealing goods), you can cancel your order right away. But we assure you that we all items are tested, complete and in good condition before shipping. For replacement, only maximum of 7 days after purchase provided the items is complete and in good condition. Again, Please be reminded that customer will shoulder all shipping fee for repair/replacement.