This 4 in 1 combination antenna includes 4G LTE main antenna, 4G LTE sub antenna, and GPS/BDS antennas. It is very suitable for V2X，T-Box，and cell communication. The 4G LTE antenna also covers 2G and 3G frequency band. Antenna efficiency is greater than 40% across whole band. And the GPS/BDS antenna has two output ports. One port is for TBOX and the other is for navigation system.