Shenzhen yu yuan technology co., LTD., founded in 2011, is a collection of product research and development, production, sales in the integration of forbidden attendance, door in face recognition products, monitoring anti-theft products and personal consumer electronics products of modern private high-tech enterprises. Company currently has two main products: security products and consumer electronic products. Consumer electronics department mainly committed to mobile power supply, wireless headset sales and regional investment channels. After many years of accumulation and precipitation, shenzhen yu yuan technology co., LTD. In 2011, released its own brand ", "Dan, formally entered the domestic consumer electronics market. Domestic consumers launched "Dan," the brand of mobile power products.