The Shure ULXD4Q-GV is a quad-channel networkable wireless receiver for use with ULX-D® Digital Wireless Systems. With 24-bit/48 kHz digital audio for pristine sound quality, efficient RF transmission for maximum channel capacity in crowded spectrum, and always-on AES-256 encryption to protect confidential content, ULX-D delivers uncompromising wireless for the most demanding environments.