The SHURE's SLXD24DA/SM58 is a dependable, easy-to-set-up wireless handheld microphone system with crystal-clear, digital sound quality for presenters and performers. The system is appropriate for portable rigs or long-term installations in small- to medium-sized venues, event spaces, conference rooms, places of worship, and educational buildings, and is built around a durable, single-channel, half-rack receiver with replaceable antennae. This digital wireless microphone system comes with two SM58 handheld transmitters and the SLXD4D Digital Wireless Receiver.