Changzhou Cre-sound Electronic Co., is a professional manufacturer for the Buzzer, Speaker, Piezo element, was founded in 1996, have ISO9001, ISO14001, ISO13485, IATF16949 Certification and 6S management systems. All of the products are be RoHS complianced! We have the professional R&D department, QC Department, and Automatic production line. The currently monthly output is 10 Million piece! Our laboratory have: Salt-spray tester, high-low temperature chamber, life test instruments, Anechoic Room, reflow solderinig oven, vibration testing machine, Temperature shocking testing chamber. Our customer:Samsung, LG, Bosch, Miele, Magneti Marelli, Sanmina, Compal, Yazaki, Simens and so on. Welcome for any inquiry and OEM project!