THE GLX-D ADVANCED DIGITAL WIRELESS VOCAL SYSTEM FEATURES INTELLIGENT BATTERY RECHARGEABILITY, AND THE PRECISION-ENGINEERED BETA58A VOCAL MICROPHONE CAPSULE OPTIMIZED FOR LEAD VOCAL PERFORMANCE AND THE GLXD4R METAL RACK MOUNT RECEIVER. FOR USE WITH GLX-D ADVANCED FREQUENCY MANAGERS, PROVIDING ROBUST RF PERFORMANCE, AUTOMATIC FREQUENCY MANAGEMENT AND INCREASED CHANNEL COUNT WITH EXCEPTIONAL DIGITAL AUDIO CLARITY AND SEAMLESS OPERATION.