HYFour Company offer creative products and powerful technology in the field of consumer electronics and sports electronics. Such as: USB HUBS, TYPE C HUBS, IP CAMERA, BICYCLE LIGHTS ETC.Also, if you tell us your product idea, we can also offer the job of designing, prototyping and volume production. Our commitment is to rich your life with professional design experience, high cost performance products, short delivery time and nice service attitude. Although established in 2013, we have successfully built an excellent reputation in China, Japan, Europe and North America. Shenzhen Hua Yan Feng Sci-tech Co., Ltd. is a here for you.