We are an acclaimed manufacturer of External GSM Antenna in the market. It is one kind of antenna used for transmitting GSM signal at specified frequency 850, 900, 1800, 1900, 2100MHz. 2100MHz is separated into UMTS (Universal Mobile Telecommunications System) frequency band for 3G, and other frequencies are separated into 2G using External GSM Antenna.
2F, No.129, Daxue Rd., Sanxia Dist. , Sanhsia, Taipei Hsien, 23741, Taiwan