Features -This compact GSM900 omnidirectional "rubber-duck" GSM antenna provides broad coverage and 3.5dBi gain. -It is a coaxial sleeve design with an omni-directional pattern. -It is designed to transmit on the 900mhz frequencies with a top end transmission not to exceed 25 watts.Works for the current digital MOBIL systems. Specifications Frequency: 824-960MHz VSWR : ≤1.5 Gain: 3.5dBi Polarization:Vertical Directionality: omnidirectional Horizontal Beam Width:360° vertical panel Beam Width:90° Power:50W Color:Black Diameter:12mm Height:243mm /9.6" Antenna Frequency:824-960MHz; Gain:3.5dBi; Directionality:omnidirectional; Antenna Connector:RP-SMA male (no center pin) Connector with tilt-and-swivel design allows the antenna to be used at different angles for getting more reception Application: LoRa, IoT, ISM, RFID, Zigbee RF antenna replacement for many access points and radios that are equipped with RP-SMA connectors including mobile, GSM wireless pay phone, fixed commercial phone, PCMCIA card, navigation device Package includes: 2pcs 900MHz RP-SMA antennas 50ohm