The Shure ULX-D Digital Wireless series offers exceptional audio clarity, efficient RF performance and rugged, intelligent, encryption-enabled hardware. Its advanced recharging technology eliminates the need for disposable batteries while extending usage times and life cycle.The Shure ULXD4 half-rack, networkable wireless receiver offers 24-bit / 48 kHz digital audio quality, efficient and intelligent RF performance, and AES 256-bit encryption. Click.Shure ULXD4 Features:Predictive switching diversityIntelligent scanning automatically finds and deploys the cleanest frequencies to transmitters over IR syncInterference detection and alerts provided on both the receiver and Wireless Workbench 6 (coming soon)Front panel gain adjustment buttons provide up to 60 dB additional gainAES 256-bit encryption-enabled for applications where secure transmission is neededEthernet networking provides streamlined setup across multiple receivers, Wireless Workbench 6 integration (coming soon), and AMX/Crestron controlSupport for frequency coordination with the Axient Spectrum Manager (coming soon)Rugged metal chassisIntuitive front panel LCD menu and controls with lockout featureUpgraded LCD with adjustable contrast and brightnessAudio and RF LED meters with peak indicatorRemovable 1/2-wave antennasFurnished rack hardware