Returned products shall be delivered in proper packaging with insurance in the name of the customer. HUAHAI is not liable for any damage that occurs during return delivery due to improper packing, shipping, or any other issues.

All returned products must be properly packed with double-layer packaging based on recommended materials like foam and other foam-made protective packaging materials.

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Costs for shipping the return products to HUAHAI shall be paid by the customer. For products within the limited warranty period, HUAHAI will cover the shipping cost for delivering the repaired or replaced product back to the customer. The delivery back address should be one of the 50 states within the United States, and HUAHAI will choose the proper means of transportation at its sole discretion.

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Normal delivery method is standard ground shipping; if the customer needs ground express or air shipping, shipping cost shall be paid by the customer. For shipping, back to customers outside the 50 states in the United States, shipping cost shall be paid by the customer.

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For products within the Limited Warranty period, the warranty is valid only upon presentation of the proof of purchase consisting of original invoice or sales slip indicating the date of purchase, model and serial number.