It is the highest gain 28dbi 3G/4G LTE antenna. Greatly Enhance the mobile broadband network coverage and Wi-Fi receiving capabilities of your 4G/3G mobile router in a weak signal area. This antenna will work with mobile broadband devices that have TS9 external antenna port. Frequency: 690-2700MHz Gain: 28dBi VSWR: less than or equal to 1.8 Impedance: 50 ohm Max input power: 50w Connector: TS9 Connector Cable type: Dual RG174 Fit for Mobile Signal Routers: B880 E5175 E5186 B890, B593, B593U-12, B593S-22, B593U-91, B593U-12, B593U,E5172AS-22, E5172S-22, E5172. MF253 MF283 MF25D, MF28G, MF29T, MF29S2, MF28D. B4000, B3000, B2000, B1000. And more. colour:white Material:ABS size:74 x 54 x 8 mm Cable length: About 300 cm Package Contents: 1 * Antenna with TS9 connector Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.