This Shure SLXD24/SM58 J52 Wireless Vocal System is perfect for presenters, performers, and anyone who needs high-quality audio on the go. Whether you're on stage, in a conference room, or at an event, this system delivers transparent, 24-bit digital audio and rock-solid RF performance. It has an extended 20 Hz to 20 kHz frequency range (microphone dependent), 120 dB dynamic range, and digital predictive switching. With 44 MHz tuning bandwidth (region dependent) and 32 available channels per frequency band (region dependent), you can enjoy interference-free use. Easy pairing of transmitters and receivers over IR scan and sync makes setup a breeze. The system comes with an SLXD4 single-channel receiver and SLXD2/SM58 handheld transmitters with antenna and rackmount accessories and 2 AA batteries. It has a rugged metal construction for durability.