1. Online customer service: customer can contact each sale staff online if they meet any questions, and our staff will give you recommend and give our advises. Any problems will be solved at first time.
2. Engineer analysis: Our engineer have more than 10 years experiences, we have new products development department
3. Warranty: Up to 12 months for replacement. During warranty period, customer will enjoy necessarily replacement due to any quality problem. But any men-made or inappropriate conduct damage will be excluded.