This is a 5 dBi GSM/3G/4G LTE Indoor Omni Antenna in Black with SMA Male connectors and a frequency range of 698-960/1710-2690 MHz. The 5 dBi GSM/3G/4G/LTE Indoor Omni is ideal for extending coverage or replacing any RBI or Cellular modem/router antenna. These are also ideal for creating custom 3G/4G/LTE routers with MikroTik and Sierra Wireless cards. The 5dBi Antenna extends wireless frequency range to your home's dead zone. This Antenna increases the frequency ranges and signals of your device, allowing it to reach all of the dead spots in your space and connect to the signal instantly.