... radio antenna 2.high performance 3.communicate distance 4.RoHS 5.durable and strong structure 1.Quick details of mini two way radio antenna ... .Place of origin:Guangdong,China mainland.Signal stability and communicate distance.Duration of use :two years. Quality ... manufacturing CB antennas, Mobile antennas, VHF/UHF antennas, DVB-T antenna,Base antenna,handheld antennas, GSM antennas, WIFI ...