Yinfitech (H.K.) Co., Ltd. is a professional manufacturer of mobile phone parts. Our products include PCB, speaker, MIC and lens. Our company has had 12 years experience in R& D and manufacture in the acoustics industry. We have 8 advanced SMT production lines, 4 CNC equipments and 32 automatic test rigs for acoustics parts. In 2008, we cooperated with two R&D companies (TCL and Shanghai Longqi) and three mobile phone OEM factories. With the advantage of our own parts and quality assurance, we have developed and launched the complete unit rapidly. At present, smart phone and touch screen phone and the phone for special people have been available. Besides, we also have Bluetooth earphone, UMPC and so on. Our company has gained the certification of ISO9001 Quality Management System and 14000 Environmental Management System.