Shenzhen Sunfly electronics Co., LTD, is very big factory, only 20-30 workers , but very tidy and A well-organized Bluetooth factory,3 R&D engineer , making good quality products and loyal to our customers always .With the original manufacturer of Bluetooth items in Shenzhen China, Sunfly can balance the price and quality. has his own R&D department to develop new product every 2-3 months.The owner Gary Zhang and his R&D team has been engaged in the Bluetooth items business for many years,exporting innovative products to numerous customers all over the world.