Muchmore guarantees all products to be free from material or manufacturing defects for a period of 120 days from the original purchase date as proven by the receipt. This warranty does not cover normal wear and tear, improper use, improper repair or modification resulting in failure and defects. It also applies to the replacement of connectors provided with the product or other connectors, mechanical damage to the case, mechanical damage to electronic components and circuit boards, and soldering of circuit boards. To avoid any potential issues and improper handling, please check all components and troubleshooting guides before returning the product for repair or warranty. Return of a properly functioning product for repair will incur service charges. By returning the product, the customer entrusts Muchmore to repair the product. If it is not a warranty or limited warranty, the original receipt with the purchase date must be included. Otherwise, the warranty will not be recognized. Please provide the address and detailed description of the malfunction for faster repair and return. The limited warranty obligation of the company is limited to the repair of parts according to the original product design documents of the company. The responsibility of the company does not exceed the cost of the parts under any circumstances. The company is not responsible for any damage caused by the use of the product because the company cannot control the installation and use of the product. By operating this product, the user accepts all resulting responsibilities. The weight, size, and other specifications are for reference only. Due to ongoing technical improvements to ensure product quality, Muchmore does not assume any responsibility for the accuracy of these specifications. Please pack the Muchmore after-sales service product carefully and enclose the receipt and detailed description of the malfunction. Please send it to the Muchmore dealer nationwide. The dealer will repair or replace the product. The shipping cost is usually collect. However, it may vary depending on the policy of the Muchmore dealer nationwide. For any questions or improvements needed, please contact the following contact information.