QLX-D reliably operates more channels on-air than any other wireless system in its class. Ethernet connection provides networked channel scanning across multiple receivers and Shure Wireless Workbench® 6 control software compatibility for advanced frequency coordination. Featuring an SM58® handheld wireless microphone transmitter, QLXD24/SM58 combines professional features with simplified setup and operation. Compatible with the Shure SB900B lithium-ion battery, QLX-D offers rechargeable power options that provide dramatic long-term cost savings and extended transmitter battery life over alkaline batteries, with battery metering that reports remaining runtime in hours and minutes. Transparent 24-bit digital audio captures every performance detail Over 120 dB of dynamic range eliminates transmitter gain adjustments Easy pairing of transmitters and receivers over IR scan and sync Automatic channel scan quickly and easily finds a clean frequency Networked channel scan configures open frequencies for connected receivers Remote monitoring and control from iOS devices via ShurePlus™ Channels Mobile App AES-256 encryption comes standard for secure wireless transmission Elegant and easy-to-use interface with high-contrast LCD menu AMX/Crestron control system ready Professional-grade, all metal construction