Shure GLXD24RE / Beta58

Digital Wireless Microphone System with SM58 Cardioid Dynamic
Includes:
GLXD4R rackmount wireless receiver
GLXD2 handheld microphone
Receiver
2.4GHz frequency band allows operation of up to 11 systems (9 typical)
LINKFREQ intelligent frequency management quickly identifies the best open channels
Microphone
Frequency Response:50Hz-15kHz
Dynamic Range:120dB
Max SPL: 146dB SPL
Up to 16 hours of continuous use with Shure lithium-ion rechargeable battery