Product Name: Free Sample Rubber Portable Antennas / Flexible GSM Antenna Model NO.: JCG401 VSWR: 1.5~2 Usage: Communication Antenna, Car Antenna Size: D10x55mm Gain: 2 dBi Impedance: 50 Trademark: jc Specification: D10.4x55mm Origin: Zj Product Description gsm high gain antenna1. Electrical Characteristics1.1 GSM Antenna1.Frequency(MHz): 824~894 MHz/1710~1990 MHz 880~960 MHz/1710~1990 MHz 1920~2170 MHz2.V.S.W.R(in BW ): ≤2.0:13.Gain(Zenith): 2 dBi4.Polarization: Vertical5.Impedance: 50 Ω1.2 Mechanical1.Cable: -2.Connector: SMA3.Plastic Housing: BlackAdvantages:1.We have our own factory, offering dozens of antenna lines and over 20 R&D personnel.2.We can make your own bespoke designs and samples to order. 3.We have an impressively quick reaction time to all your orders and requests, pre-production.4. In Jinchang's R&D office, the Technical personnel to meet various requirements for you.Advantages:1.We have our own factory, offering dozens of antenna lines and over 20 R&D personnel.2.We can make your own bespoke designs and samples to order.3.We have an impressively quick reaction time to all your orders and requests, pre-production.4. In Jinchang's R&D office, the Technical personnel to meet various requirements for you.