Warranty: All items comes with 1 YEAR warranty and Warranty period starts from arrival day. All items is guaranteed to be working upon arrival. If the item is found to have been damaged by the customer by for instance rough handling, wrong installation or extreme temperatures, the warranty is not valid. Return: All returned products must be in their original packaging with all included accessories intact,and must be accompanied by a copy of the Return Item Authorization (RMA) issued by us,and sent to the address indicated in the Return Item Authorization.We shall notify you once we have received and processed your returned item. We typically process your returned items for evaluation & investigation within seven (7) days of receiving them.If it meets our warranty requirements,a refund will be given or a brand new replacement unit will be sent to you at our cost. Contact us: After received the email ,uauslly we will reply your within 24hrs.We handle large emails every day. Sometimes Please allow us to reply your email within 48hrs.(Monday-Friday). Emails will not be answered weekend or holidays. Feedback: We strive to satisfy every customer.we will do our best to solve your problem. Before leaving us neutral or negative feedback, please contact us first. We will do everything we can to give you a satisfying solution. We do our best to resolve any issue. Leaving negative feedbacks and low ratings doesn't get things solved. So please talk with us and we will not let you down.