The Shure GLXD4+ dual-band rack receiver delivers exceptional digital audio clarity and, in combination with the GLXD+ dual-band frequency manager, provides advanced RF performance. GLX-D+ wireless systems combine Automatic Frequency Management technology and dual-band (2.4GHz and 5.8GHz) wireless operation with a rackmountable metal receiver, rechargeable lithium-ion batteries and unparalleled design. GLX-D+ Frequency Managers (available separately) allow you to connect multiple GLXD4R+ receiver systems for increased channel count and improved RF reliability, consolidating RF to one pair of antennas. This system includes a GLXD4R+ rackmountable wireless receiver, a power supply, two 22" RSMA cables, two antennas, a hardware kit and two bulkhead adapters.