This 4G/3G LTE wifi antenna is a good solution for to receive and enhance signals. With optional male jack, this antenna will work with mobile broadband devices that have external antenna port. Greatly enhance the mobile broadband Network coverage and Wifi receiving capabilities of your 4G/3G Mobile Router. With 22m cable for 4G/3G mobile router, use it at ease. It is the highest gain 28dbi 3G/4G LTE antenna, has two male connectors, the cable length is 29 metres. High performance and super durability. Frequency F:1880-1900MHZ A: 2010-2025MHZ E: 2320-2370MHZ D: 2500-2690MHZ LTE: 450-470/2300-2400 MHz Voltage Standing Wave Ratio:less than equal 15 Gain:28dbi Polarization Type:vertical Rated :50W Input Impedance:50 ohms Size:74*54*10mm Operating Voltage:3V-5V Cable Type:RG174 Line length:220cm Jack: SMA Male color: White material: plastic Package Contents: 1 * 4G/3G LTE Antenna 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.