A. Suitable for 4G mobile broadband modem routers, easy to install without software. B. Usage conditions: The corresponding interface is SMA / TS9 / CRC9, matching the corresponding frequency band of the device. C. Compatibility list: 3G and 4G router modems. D. Can be used indoors or outdoors to enhance and maintain signal quality. E. Frequency range: 698 - 960 / 1710 - 2700 MHz F. Voltage Standing Wave Ratio (VSWR): Less than 2.5 G. Gain: 10 - 12 dBi H. Polarization type: Vertical polarization I. Radiation pattern: Omnidirectional radiation J. Maximum input power: 10 watts K. Input impedance: 50 ohms L. Connector type: SMA, TS9, CRC9 or others M. Cable type: RG174 N. Cable length: 0.5 meters O. Dimensions: Approximately 23 x 6.5 x 6.5 cm P. Installation tips: - Install the antenna vertically for better performance. - Avoid installing the antenna next to metal objects. Q. Color: White R. Material: Metal + plastic S. Package contents: - 2 clip codes - 2 U - shaped codes - 4 nuts - 4 washers - 1 antenna T. Only the above package contents are included, and no other products are included. U. Note: Light and different displays may cause slight differences between the color of the items in the picture and the actual items. The measurement error is allowed to be around +/- 1 - 3 cm.