Usage Tips:Shipping cost is bear by both seller and buyer inhalf.All returned items MUST BE in the packaging and you MUST PROVIDE us with the shipping tracking number, specific reason for the return, and your order ID.We will refund YOUR FULL WINNING BID AMOUNT, upon receipt of the item in its condition and packaging with all components and accessories included, AFTER BOTH Buyer and Seller cancel the transaction from aliexpress. OR, you may choose to have a replacement.We will bear all the shipping cost if the product(s) is (are) not as advertised.12 months Manufacturer"s limited Warranty for defective items (excluding items damaged and/or misused after receipt). Accessories come with a 3-month warranty.Defective items MUST BE reported and returned within the warranty period (and in the packaging, if possible). You must tell us what the defect is and give us your order number. WE DO NOT REPAIR OR REPLACE ITEMS WITH AN EXPIRED WARRANTY.You agree to all of the above-listed policies upon ordering on aliexpress Our office hours are 9:00 a.m. to 6:00 p.m. (GMT+8) of Monday to Saturday.And our office is closed on Sunday and public holidays (Peking) if you have any questions,please feel free to contact us on aliexpress message,we will try our best to reply your questions in 48 hours. during the holidays,for delay reply,we apologize deeply.