Handheld Digital Wireless System

Features BETA®58A handheld vocal microphone and GLXD4R rack mount receiver.


The GLXD24R/B58 Handheld Wireless System is part of the GLX-D Advanced wireless systems family.

GLXD24R/B58 provides intelligent battery rechargeability, robust RF performance, automatic frequency management and increased channel count with exceptional digital audio clarity and seamless operation. The precision-engineered BETA 58A vocal microphone capsule is optimized for lead vocal performance. For use with GLX-D® Advanced Frequency Managers (UA846Z2).

Includes GLXD4R rack mount receiver, GLXD2/BETA58 handheld transmitter with integrated BETA 58A supercardioid dynamic microphone capsule, microphone clip, SB902 rechargeable lithium-ion battery, USB charge cable, 2 detachable antennas, rack mount hardware, and user guide.

Shure GLXD24R/B58: GLX-D Advanced Digital Wireless Vocal System with BETA58A

Backup Battery

Shure GLX Digial wireless operare in the Z2 or 2.4 GHz frequency range.


2.4 GHz Pros

  • No license required in any country.
  • No interference from local TV stations.

2.4 GHz Cons

  • Used for many other wireless services, such as Wi-Fi. Note there are audio mixing boards that use Wi-Fi for remote control.
  • Heavy RF traffic in this band can adversely affect the GLX-D performance.  Symptoms can be short transmission range, frequent loss of signal, inability to operate multiple GLX-D systems at the same time.
  • The human body efficiently absorbs and blocks this frequency.  The short 2.4 GHz wavelengths (4.9 inches) make it essential to maintain line-of-sight between the transmitter and the receiver for the most reliable operation.
  • Microwave ovens can produce local interference in this frequency band.
  • At 2.4 GHz, transmission distance outdoors is typically far less than indoors.   Outdoors there is a lack of surfaces to reflect the transmitted signal.  Such reflections improve transmission distance indoors. As a general rule, 2.4 GHz waves do not effectively penetrate many types of walls. 

NOTE: In theory, it is feasible to simultaneously operate up to eight GLX-D systems in one venue under optimal conditions.  However, local interference in the 2.4 GHz band will often reduce this number to four or less.

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