Shure PGXD24/SM86-X8 Digital Handheld Wireless System with SM58 Vocal Microphone PGX Digital Wireless, with state-of-the-art, 24-bit digital audio and trusted Shure microphones, delivers stunning sound and a strong, clean RF signal Includes PGXD4 receiver, PGXD2/SM86 handheld transmitter, clip, power supply, 2 AA batteries, carrying case, and user guide Shure Model: PGXD24/SM86-X8 UPC Code: 42406190640