Please do not discard all packaging materials of the product within 7 days of receiving it. Due to quality issues with the product within 7 days, it can be returned or exchanged. When returning or exchanging, please follow the original packaging requirements and return the product in good condition. If the received goods have problems, please do not disassemble them yourself (otherwise returns and exchanges cannot be made). Contact customer service and we will provide you with detailed return and exchange details. Thank you for your cooperation.