5th Floor, No.2 Building, East Bright Industry Region, Dabao Ro. 83 Block, Bao An 33 District, Shenzhen, China.
Shenzhen Constant Electronics Co., Ltd. is a high-technology company specializing in researching wireless communication products. Our was set up 1993, and owns professional technology team which constituted by senior experienced officers engaged ...
Call Button,Pager,Wireless Calling System,Guest Paging System,LED display receiver
