1. It is suitable for 4G mobile broadband modem routers and is easy to install without the need for software. 2. Conditions of use: The corresponding interface is SMA / TS9 / CRC9, matching the frequency band of the device. 3. Compatibility list: 3G and 4G router modems. 4. It can be used indoors or outdoors to enhance and maintain good signal quality. 5. Frequency range: 698 - 960 / 1710 - 2700 MHz 6. Voltage Standing Wave Ratio (VSWR): Less than 2.5 7. Gain: 10 - 12 dBi 8. Polarization type: Vertical 9. Radiation pattern: Omnidirectional 10. Maximum input power: 10 watts 11. Input impedance: 50 ohms 12. Connector type: SMA, TS9, CRC9 or others 13. Cable type: RG174 (optimal) 100% 14. Cable length: 0.5 meters 15. Dimensions: Approximately 23 x 6.5 x 6.5 cm 16. Installation tips: - Install the antenna vertically for better performance. - Avoid installing the antenna next to metal objects. 17. Color: White 18. Material: Metal + Plastic 19. Package contents: - 2 clips - 2 U - shaped clips - 4 nuts - 4 washers - 1 antenna 20. Only the above package contents are included, and other items are not included. 21. Note: Light and different displays may cause slight differences between the color of the item and the actual object. A measurement error of +/- 1 - 3 cm is allowed.