Shure ULXD4Q-GV Quad-Channel Digital Wireless Receiver - J50A Band 100707044 Battery Run Time (@10 mW):

Battery Run Time (@10 mW): Single-Carrier Mode: up to 9 hours

32 Hz - 125 Hz (-6 dB)

the Hydro Beam FX1 is designed for both indoor or outdoor use

Fits 2 subwoofer polies

Shure ULXD4Q-GV Quad-Channel Digital Wireless Receiver - J50A Band 100707044 Battery Run Time (@10 mW):Shure ULXD4Q GV Quad Channel Digital Wireless Receiver J50A Band Part of the ULX D wireless series, the Shure ULXD4Q GV houses 4 independent digital receivers in a rugged, single rack unit with an internal power supply. This GV version of the receiver features always on AES 256 encryption and is designed for government and high level executive applications where sensitive audio information may be transmitted. Two Ethernet ports support Dante digital