Guangzhou Dimansi Electronics Co., Ltd. is a leading manufacturer who specialize in video intercom system more than 20 years. Our company was founded in 1999 and is located in Baiyun District, Guangzhou, China. Our company owns a group of elite workers in professional management, technology, and marketing. It is a high-tech enterprise specializing in research and development, production, sales, and service of video intercom products.Our main products: Tuya Facial IP Video Doo...