Dear customers, please confirm the model before placing an order to avoid buying the wrong model. For more product information, you can consult customer service. If you encounter issues such as product damage or inability to use the product after receiving it, please contact customer service promptly to resolve the problem. Provide a complete unboxing video and a video showing that the machine still cannot be used after following the instructions to customer service. Customer service will resolve the issue for you promptly upon receiving the videos. For other issues, please consult customer service.