QLX-D Digital Wireless Systems deliver 24-bit audio clarity and RF spectrum efficiency, making them ideal for demanding live and installed sound events. Auto channel scan and IR sync quickly connects to open frequencies. Networked frequency scanning, advanced frequency coordination, and AES-256 encryption further enhance performance. QLXD2 handheld transmitters offer 100 m (330 ft.) range, durable metal construction, and a variety of compatible mic options with legendary Shure sound.