Features Stable signal: Comes with 12dbi high gain, the 4G antenna provides wider coverage, longer distance and stable signal. Reliable work: independent transmission channel has high efficiency and little co-channel interference, very reliable. Wide utility: widely applied in NB‑IOT module, 4G router, 3G router, DTU module and wireless transmission equipment. Good material: the application of high quality ABS material makes the antenna waterproof and durable from sunshine. Better design: SMA male head allows easy connection, and the small size largely simplifies carrying and installation. Specification: Item Type: Antenna Model: JB-4G-011 Material: ABS Function: For signal transmission and amplification. Operating frequency: 700-2700MHz Antenna Gain: 12dbi Standing wave ratio: ≤1.5 Impedance: 50Ω Radiation direction: Omnidirectional Polarization method: vertical polarization Maximum power: 50W Antenna interface: SMA male head Bandwidth: 100 MHZ Working temperature: -40℃~85℃ Application: for NB-IOT modules, 3G and 4G routers, DTU modules and other wireless transmission equipment. Package List: 2 x Antenna Package List 2 x Antenna