Shure SLXD4D J52 Dual-Channel Digital Wireless Receiver - J52 Band 100834381 There is also an array

There is also an array of 8 buttons used to select the operation mode

Allen & Heath Qu-Pac Portable 22in / 12out Digital Mixer

XLR connectorThe main stereo outputs feature XLR type connectors that lock to prevent accidental disconnection

The PowerSpace P21000A provides 1000 watts per channel and features versatile outputs that give you the flexibility to deliver full channel power to either low- or high-impedance loads — without bridging — and even send double power to a single zone

Shure SLXD4D J52 Dual-Channel Digital Wireless Receiver - J52 Band 100834381 There is also an arrayShure SLXD4D J52 Dual Channel Digital Wireless Receiver J52 Band SLX D Digital Wireless delivers transparent, 24 bit digital audio and rock solid RF performance with easy setup and rechargeability options in a suite of versatile wireless system configurations. Featuring industry leading digital wireless technology and design in a convenient dual, full rack configuration, the SLXD4D saves space and accessories for any size of multi system configuration