Antenna Type: GSM Antenna ST 5CM Impedance: 50 ohm Antenna Cover: Polyurethane Color: Black Operation Temperature: -20 ~ +65 degree Storage Temperature: -30 ~ +75 degree Connector: SMA male Frequency: 868MHZ/900MHZ/915MHZ Gain: 2dBi Application: RF, Lighting, GSM Router Antenna length:5cm