Warranty Policy

Warranty period

Unless otherwise stated in the sales contract, CYNRIN smart glasses carry a 12-month limited warranty from the date of shipment against defects in materials and workmanship under normal use.

What is covered

• Failure of electronic components (mainboard, battery charging circuit, speaker or microphone assembly) under normal use;
• Assembly defects such as loose hinges or defective cable connections present at delivery;
• Battery capacity below the specification stated for the model within the warranty period under normal charging conditions.

What is not covered

• Accidental damage, drops, crushing, liquid ingress beyond the rated protection level, or exposure to extreme temperatures;
• Scratched lenses, worn nose pads and other consumable wear from normal use;
• Damage caused by unauthorized repair, disassembly, firmware flashing or modification;
• Damage caused by non-compliant chargers, accessories or third-party software;
• Units with removed, altered or unreadable serial or batch labels;
• Problems caused by failure to follow the user manual.

How to make a claim

1. Contact [email protected] with the order number, batch label, a description of the fault and photos or video.
2. Our after-sales team reviews the claim and may request return shipping for inspection.
3. Valid claims are resolved by repair, replacement of the defective unit or part, or credit as agreed with the buyer.

B2B order terms

For branded and distributor orders, warranty is delivered business-to-business to the contracting buyer. Replacement batches, spare-part ratios and extended warranty terms can be negotiated in the sales contract for volume programs.

Shipping for warranty

Return shipping for confirmed defects is handled according to the arrangement agreed in the contract. Buyers should not return goods without a return authorization from our team.