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As a supplier of HITACHI, Changzhou Yongyin Electronics Co., Ltd was founded in 2000. Our company covers an area of 10000 m2, and we have built the second phase of our industrial park, which covers an area of 20000 m2 and came into service in 2014. Our company is specializing in manufacturing SMD buzzer, electromagnetic buzzer, Piezo buzzer, speaker, mini speaker of mobile phone, nickel alloy substrate and microphone (electret microphone) with 300 employees. Our company set up an advanced engineering & development department to meet special demands from different industries for electroacoustic product design. From the end of 2003 to 2004, our products scored a first by passing the SGS certification of environmental protection in this industry. Now we supply an abundant of the electroacoustic products with RoHS standards. In 2005, our company has established cooperation relationship with HITACHI cooperation, which brings the company’s overall quality to another level. In 2006, we launched a variety of SMD buzzer and mobile phone speaker, and supplied them to lots of cellphone OEM companies.
 
Currently our products are widely used in:
The communication industry: such as mobile phone, radio, power bank, wireless changer etc;
Computer accessory: such as modem, digital camera, UPS, motherboard etc;
Household appliances: such as air-conditioner, microwave oven, coffeepot, soybean milk machine etc;
Transportation infrastructure: such as ETC, automatic parking system, automatic payment channel, parking induction system, subway High-speed rail alarm bell etc;
Financial industry: such as POS machine, bank U shield, mobile credit card machine, remote payment induction system etc;
Medical device industry: such as electrocardiograph, blood glucose meter, sphygmomanometer, thermometer etc;
Intelligent home burnishing: such as intelligent switch, intelligent door lock, building talk-back etc.
 
We take pride in our advanced management system, fast delivery and competitive price. Our tenet is Quality First, Customer First and Service first.