Shure GLXD14R+/MX53-Z3, Digital Wireless Rack System with MX153 Headset Microphone

The Shure GLXD14R+/MX53-Z3, is a Digital Wireless Rack System with MX153 Headset Microphone. The new GLX-D+ Dual Band Wireless Rack System features the premium MX153 Headworn Earset for high-quality vocal performance 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. In the Box: 1 PS43 Power Supply 1 SB904 Lithium-Ion Rechargeable Battery 1 Zippered Vinyl Bag 1 Rack-mount Hardware Product Specifications: Wireless Technology: Digital 2.4 GHz/5.8 GHz Included Transmitters: 1 x Bodypack Diversity: True Digital Diversity Latency : 4.5 to 8 ms Dynamic Range: 120 dBA Receiver Type:  Rackmount Mounting Options: Rackmount (with Included Hardware) Rackmount Size: 1 RU (1/2 Rack) Operating Temperature: 32 to 113°F / 0 to 4