I will definitely follow up, never say eighteen months, not even multiples of eighteen months. I think in the future, products that don't win for the purpose of quality are untenable. Lifetime warranty is the right way, and manufacturers without self-confidence will not last long. What ordinary people need is the guarantee of after-sales service quality. It is impossible to talk on paper. It is fundamental to come up with good things that can really benefit the people. I hope that all walks of life will not serve the people's lives purely for profit.