Shure BLX14/SM31 Fitness Wireless Headworn Microphone System | Frequency: H11 (572-596 MHz) Lighting Controllers giving you confidence that every

giving you confidence that every transmission is secure

All inputs and outputs can be used simultaneously and all audio channels are available separately

corporate and government presenters

and a BLX4R Rack Mount Receiver

The BLX14/SM31 Fitness Wireless Headworn Microphone System from Shure is ideal for capturing audio while providing the maximum capacity for movement--ideal for aerobics instructors

Shure BLX14/SM31 Fitness Wireless Headworn Microphone System | Frequency: H11 (572-596 MHz) Lighting Controllers giving you confidence that everyThe BLX14 SM31 Fitness Wireless Headworn Microphone System from Shure is ideal for capturing audio while providing the maximum capacity for movement ideal for aerobics instructors, fitness trainers, and more. This system includes a BLX4 Wireless Receiver, a BLX1 Bodypack Transmitter, a SM31 Fitness Headset Microphone, and the accessories you need to start moving with your sound.