Features 1、EXCELLENT MATERIAL: The omnidirectional antenna is made of excellent ABS material, non toxic and harmless, waterproof and sunscreen. 2、HIGH PERFORMANCE: This foldable antenna has 5dbi high gain, the signal is super strong, the bigger the range, the farther the distance. 3、STABLE CONNECTION: With SMA male interface, stable and reliable in connection, wear and corrosion resistant, has a long service life. 4、HIGH EFFICIENCY: Independent channel transmission is faster, reducing co channel interference and improving transmission efficiency. 5、MULTIPLE USAGES: Used in GSM, 2G, 3G, 4G, LET full band network equipment, number taking machines, routers, vending machines, etc. Specification Item Type: Foldable Antenna Model: JB-GSM-022 Material: ABS Purpose: Signal transmission and gain Antenna Frequency: 915Mhz Antenna Gain: 5dbi Standing Wave Ratio: ≤1.5 Impedance: 50Ω Radiation Direction: Omnidirectional Polarization Method: Vertical Polarization Maximum Power: 50W Antenna Interface: SMA Male Working Temperature: -40℃~+85℃ Application Areas: GSM wireless module, NB-IOT module, DTU module, advertising machine, numbering machine, vending machine, GPRS signal reception and transmission, etc. Package List 5 x Antennas