The Shure ULXD24/SM58 Handheld Wireless System features 24-bit audio clarity, efficient RF performance, and AES-256 encryption, ULX-D Digital Wireless Systems set a new standard for professional sound reinforcement. Optional rechargeable accessories are available. 

The set includes the ULXD2 handheld transmitter with a cardioid SM58 capsule, ULXD4 single-channel receiver, microphone clip, zipper bag, two AA batteries, power supply, two 1/2 wave antennas, two 2' BNC cables, 2 BNC bulkhead adapters, rackmount kit, and a 5' ethernet cable.

Shure ULXD4 Digital Wireless Receiver (H50: 534-598 MHz)
The ULXD4 Digital Wireless Receiver from Shure is designed for compatibility with Shure's ULX-D wireless systems. It is tuned to Shure's H50 frequency band that operates between 534 to 598 MHz. It features 256-bit AES encryption that allows for reception of secure signals. The unit's digital predictive switching diversity is designed to assure you have consistent reception.

Predictive switching diversity
High Density mode optimizes ULX-D systems to simultaneously operate significantly more channels in applications up to 30 meters
Intelligent scanning automatically finds and deploys the cleanest frequencies to transmitters over IR sync
Interference detection and alerts provided on both the receiver and Wireless Workbench 6
Front-panel gain adjustment buttons provide up to 60 dB additional gain
AES 256-bit encryption-enabled for applications where secure transmission is needed
Ethernet networking provides streamlined setup across multiple receivers, Wireless Workbench 6 integration, and AMX/Crestron control
Support for frequency coordination with the Axient Spectrum Manager
Metal chassis
Front-panel LCD menu and controls with lockout feature
LCD with adjustable contrast and brightness
Audio and RF LED meters with peak indicator
Remoteable ½ wave antennas
Furnished rack hardware
Specs :

RF Input Specs

Spurious Rejection     >80 dB, typical
Connector     BNC
Impedance     50 Ohms
Bias Voltage(s)     12 to 13 VDC, 170 mA maximum, per antenna
Audio Output

Gain Adjustment Range     -18 to 42 dB in 1 dB steps (plus Mute setting)
Configuration     1/4" (6.3 mm): Impedance balanced (Tip= audio, Ring= no audio, Sleeve= ground)
XLR: balanced (1= ground, 2= audio +, 3= audio −)
Impedance     1/4" (6.3 mm): 100 Ohms (50 Ohms Unbalanced)
XLR: 100 Ohms
Full Scale Output     1/4" (6.3 mm): 12 dBV
XLR: LINE setting= 18 dBV, MIC setting= -12 dBV
Mic/Line Switch     30 dB pad
Phantom Power Protection     1/4" (6.3 mm): Yes
XLR: Yes
Networking

PoE     No, protected
Network Interface     Single-port Ethernet 10/100 Mbps
Network Addressing Capability     DHCP or Manual IP address
Maximum Cable Length     328' (100 m)
General

Housing     Steel
Power Requirements     15 VDC @ 0.6 A, supplied by external power supply (tip positive)
Dimensions (HxWxD)     7.75 x 6.75 x 1.65" (197.00 x 171.00 x 42.00 mm)
Weight     2 lb (913 g) without antennas
Packaging Info

Box Dimensions (LxWxH)     18.346 x 14.882 x 3.622"