Shenzhen Haoyun Electro-Acoustic Co., Ltd was established in 2012 .The company is focused on the design, development and manufacture of the following products: . Spaker or horn for headphone and in-ear ( Diameter from 8mm to 50mm ) . Wireless Bluetooth earbuds . TWS (True Wiressless Earbuds) . Wire Hifi earphone . Cable of Headphone At the very beginning, we focus on the OEM/ ODM business of the electro-acoustic industry and provide customized design and manufacturing services for high-quality headphones and audio products. We aim to provide customers with excellent quality, reasonable price and timely delivery, and achieve and exceed customer expectations. The company is located in ShenZhen ,The company is located in Shenzhen, the city of innovation. The factory is located in Dongguan of the manufacturing center of China . The transportation is convenient and the logistics is smooth.