How can you get more fans on their feet? Add more freedom to your performance— without pushing a single button. Ideal for small and medium stages, GLX-D® Digital Wireless is the easy way to go wireless with less worry.The GLX-D Advanced Digital Wireless Headset System features intelligent battery rechargeability, the durable SM35 headset microphone for high quality headworn vocal performance applications and the GLXD4R metal rack mount receiver. For use with GLX-D Advanced Frequency Managers providing robust RF performance, automatic frequency management and increased channel count with exceptional digital audio clarity and seamless operation.