SHENZHEN YUHANG COMMUNICATION TECHNOLOGY CO.,LTD(factory)    
Add:13AFl.,Bldg.A1,Qiaodehigh-techTechnoPark,KelianRoad,GuangmingDistrict,Shenzhen    

DONGGUAN ONEFAST COMMUNICATION TECHNOLOGY CO.,LTD (operate office)

Office Add:Rm.706,Bldg.16th,No.7,Keji10thRd.SongshanLakeDistrict,Dongguan,China