Manufacturers description

UR4S and UR4D Wireless Receivers
The UR4S and UR4D receivers provide single and dual-channel options for Shure's premium wireless. The latest technologies provide advanced control and robust flexibility for a wide range of professional uses.
Two Single-rack Space Versions:
- UR4S Single Channel
- UR4D Dual Channel
Features
UHF-R Wireless features Shure's patented Audio Reference Companding for crystal-clear sound beyond the limits of conventional wireless technology.
UR4S and UR4D Wireless Receivers
- 2400 Selectable Frequencies Across 60 MHz Bandwidth
- Track Tuning Filtering Technology
- Up to 60 Preset Compatible Systems/Band (140 w/Multiple Bands, Region Dependent)
- Networked Automatic Frequency Selection
- Automatic Transmitter Setup (including Custom Group Upload)
- Flash Memory to Store Six 60-channel Custom Frequency Groups
- Shure's Patented Audio Reference Companding
- Multi-function Bit-mapped Backlit LCD
- Built-in USB & Ethernet Network Compatibility
- Shure's Wireless Workbench Control/Monitoring Software
- Remoteable Antennas
- Shure's Microprocessor-controlled Diversity
Description
SHURE WIRELESS SYSTEMS - UHF-R Series Radiomics
UHF-R systems 'master the high pressure and extreme conditions of any large-scale touring or installation environment' while delivering 'uncompromising Shure sound'. 'Rock-solid engineering, the latest technology, and unparalled RF performance provide sound professionals with all the features and flexibility they need to tightly control up to 108 systems for the most elaborate productions'. UHF-R systems feature Shure's patented Audio Reference Companding for 'crystal-clear sound beyond the limits of conventional wireless technology'. UHF-R is exclusively available with Shure's premium KSM9 Dual-Diaphragm wireless microphone.