Shanghai Yidou Technology Co., Ltd. is a Shanghai, China-based company established in 2018, operating as both a manufacturer and trading company. Specializing in smart products, the company designs, manufactures, and sells items such as smart video doorbells, smart locks, and digital door viewers. With 11 to 50 employees, Shanghai Yidou Technology Co., Ltd. offers ODM services and holds ISO 9001 and ISO 14001 certifications. The company has a factory and an R&D capacity, including its own brand 'SeeU'.
Beijing Yadu Indoor Environment Protection Technology Corporation, established in 1987, is a leading manufacturer and contract manufacturer of indoor environmental protection products based in Beijing, China. Recognized as China's first and largest humidifier manufacturing company, Yadu employs between 501 and 1000 people and has a registered capital of 122.5 million RMB. The company operates a production base in Beijing with ten assembly lines, boasting an annual design capacity of approximately 300 million sets. Yadu specializes in a wide range of humidifiers, including ultrasonic humidifiers, evaporation humidifiers, and air purification products. The company is committed to technological leadership, investing over ten million RMB annually in R&D, which has resulted in numerous original technology patents and intellectual property. Yadu maintains a complete quality control system and holds certifications such as ISO 9001, ISO 14001, UL, GS, and CE. Their products are exported to international markets including Europe, the United States, Canada, and Japan. Yadu was also the exclusive supplier of air purifiers and humidifiers for the Beijing 2008 Olympic Games and played a leading role in drafting the Humidifier Product National Standard GB2332-2009.