Shenzhen Yuhai Technology Company Limited is the poineer for the area of electronic technology which possesses strong production capability,advanced technology and excellent managing resources,Yuhai has been devoted into technical research products,and now has developed into a large enterprise integrating developing,producing and selling.The electronic technical products have graceful patterns,advanced runction and reliable quality,which specilize in electronic celendar series,telephone series,radio series,and flash advertisement boards.