Beijing MMCall Electronics Co.,Ltd is a high-technology company specializing in researching wireless communication products. Established in 1993, this professional team is made up of highly experienced senior technology officers, who engage in wireless technology researching and single-chip system developing. We process advanced manufacturing technology, perfects checking equipment, scientific arrangement and a strict quality guarantee system.



In order to adapt to market competition and trade development, Constant Electronics continually works to enlarge its selling section and warranty service system. We have set up Shenzhen main company (Beijing MMCall Electronics Co.,Ltd), Shenzhen Branch Company (Shenzhen Constant Communication Co., Ltd), Beijing Branch Company (Beijing Constant Co., Ltd), Chengdu and Kunming offices. We own dozens of distributors, which constitute a national selling and service system. By shortening the distance between company and customer, we will continue to provide advanced products and perfect service all the time.