Shure QLXD24-B87A Handheld Wireless System with Beta 87A Microphone GLXD24R-BETA87A 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 87A vocal microphone capsule delivers warm, accurate sound and maximum sound isolation. For use with GLX-D? Advanced Frequency Managers (UA846Z2). Includes GLXD4R rack mount receiver, GLXD2/BETA87A handheld transmitter with integrated BETA 87A supercardioid condenser microphone capsule, microphone clip, SB902 rechargeable lithium-ion battery, USB charge cable, 2 detachable antennas, rack mount hardware, and user guide.