Shure BLX4 Wireless Microphone System with SM31FH Cardioid Fitness Headset Kit (H9: 512 to 542 MHz)

The Shure BLX4 Wireless Microphone System with SM31 Cardioid Fitness Headset Kit from B&H brings fitness and aerobics instructors a cost-effective wireless headset microphone system with quality sound, simple setup, intuitive operation, and dependable performance right out of the box. It includes the compact and lightweight BLX4 single-channel tabletop receiver with internal antennas, ideal for portable use.