Superbat GSM/CDMA/3G/4G Cellphone FME Male Connector Omni Signal Booster Amplifier Antenna + Holder. Features: Strengthens the signals of GSM and CDMA for every phone. Attach a phone holder for better signal. Easy stick-on installation, no powered, drilling and tuning required. Improves reception and transmission when using your phone inside any vehicle and poor cell phone service area. Specifications: Supporting mobile network: GSM/CDMA, Frequency Range: 824 – 896 MHz/ 890 – 960 MHz/ 900 – 1800 MHz/ 850 – 1900 MHz, VSWR: ≤1.5, Gain: 9dBi, Polarization Type: Vertical, Radiation: Omni, Rated Power: 50W, Input Impedance: 50 Ohms, Connector Type: SMA Male/ FME Female, Suction Cup: ø2.0 inch/ 5.0 cm, Cable Type: RG174 (best) cooper, Cable Length: 6.6 ft/ 2 m, Antenna dimensions: 7.9 x 2.1 x 1.0 inch/ 20.0 x 5.4 x 2.6 cm, Phone holder supporting width: 48-77mm, Color: Black. Package Included: 1 x 9dBi Gain Signal Booster Antenna, 1 x Phone Holder.