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Brand: Duoyi; Series: DY5750B; Model: DY5750B; Intelligent Type: Does not support intelligence;Dear customer, hello! We hereby declare that our products are all spot, and are home delivery, we use the logistics is J&T, delivery cycle is 7 days. If you encounter any problems in the process of shopping can at any time consulting us, our customer service online at any time. Our products are the regular products, please rest assured purchase. I wish you a happy shopping!Dear customer, hello! We hereby declare that our products are all spot, and are home delivery, we use the logistics is J&T, delivery cycle is 7 days. If you encounter any problems in the process of shopping can at any time consulting us, our customer service online at any time. Our products are the regular products, please rest assured purchase. I wish you a happy shopping!