Shanghai Biancheng Electronic Technology Co., Ltd.is a wireless calling system , coaster pager, service bell, call the business, get food, emergency alarms and other professional production and processing company, has a complete and scientific quality management system. The company has been committed to the service and after-sales support in the build quality of products to customers. Integrity, strength and quality of the border town of Shanghai Electronic Technology Co., recognized by the industry. We firmly believe that through our unremitting efforts, and product innovation and improvement, will win more customers recognized! Welcome friends to visit, guidance and business negotiation.