KYS founded in 2002, is an electro-acoustic unit and final product manufacturer capable of R&D, production and distribution. We mainly provide our customers with comfortable, innovative and high quality electro-acoustic products and wireless communication products , including earphone, USB sound card  telephone receivers, super-thin speakers , ect.,, which are very popular throughout more than 10 countries and regions, including USA, Europe and Japan. We enjoy a worldwide reputation. With many professional electro-acoustic / experts and advanced R & D equipments, we have become a leading OEM/ ODM manufacturer for the past years. Our R & D and production workshops located in Dongguan and Ningbo ensure the shortest delivery to satisfy all customers.