Founded in October 1996, Changzhou Shenghui Electronic Co., Ltd. (SUNWAY) is a professional company designing and manufacturing electro-acoustic components, including Buzzer, Receiver, Speaker, Earphone, Transducer, Piezo-Ceramic Element, Piezo-Ceramic Ultrasonic Sensor, Electret Condenser Microphone and high-frequency telecommunication products. The company is happy and proud to serve its customers and provide them its products with the fastest and best possible service.