The new Shure GLX-D+ Dual Band Wireless Rack System features the versatile SM31 Headset Microphone for spoken word applications and the GLXD4R+ half-rack receiver.

The Shure GLXD14R+/SM31 Digital Wireless Rack System is a high-performance solution designed for active speakers, fitness instructors, and performers who need a secure, comfortable, and sweat-resistant headset microphone. The GLXD4R+ rackmount receiver utilizes dual-band wireless technology (2.4GHz & 5.8GHz) for seamless, interference-free operation, while the SM31 headset microphone delivers clear, natural vocals with a lightweight, flexible frame. Featuring automatic frequency management, rechargeable lithium-ion battery technology, and a durable rackmount design, this system ensures reliable, hands-free audio performance in any demanding environment.

Ready-To-Go. Every time. Automatically.

The new GLX-D+ Dual Band Wireless Rack System features the versatile SM31 Headset Microphone for spoken word applications and the GLXD4R+ half-rack receiver. The perfect combination of the automatic frequency management with the new Dual Band Technology provides reliable and consistent performance, while Shure proprietary Lithium-Ion rechargeable batteries provide up to 12 hours of use. Go wireless without complication.

Product Specifications:

Wireless Frequency: 2.4GHz & 5.8GHz dual-band

Microphone Type: Condenser

Polar Pattern: Cardioid

Battery Life: Up to 12 hours (SB904 rechargeable battery)

Receiver Type: Rackmount (GLXD4R+)

Transmission Range: Up to 100 feet (line-of-sight)

Audio Frequency Response: 20Hz – 20kHz

Microphone Design: Sweat-resistant for fitness and active applications

Construction: Rugged metal receiver, flexible and lightweight headset