The UA8-2.4-5.8 from Shure is a dual-band omnidirectional antenna for use with GLX-D+ wireless systems and compatible with the half-rack GLXD4R+ receiver and the GLXD+FMDB Dual-Band Frequency Manager. It is a single version of the antenna pair included with the GLXD4R+ receiver and is sold as a replacement if one of the original antennas is damaged or lost.