Revolutionary Shure GLX-D Digital Wireless Systems combine leading-edge LINKFREQ Automatic Frequency Management technology with best-in-class intelligent lithium-ion battery rechargeability to define the new standard for seamless operation and digital audio clarity.Intelligent frequency management quickly identifies the best open frequencies. LINKFREQ Automatic Frequency Management. Best-in-class intelligent lithium-ion battery rechargeability allows up to 16 hours of continuous use and greatly reduces the cost of ownership. Operate up to 4 compatible systems in typical setting, up to 8 maximum under ideal conditions. Includes: (1) GLXD4 Wireless Receiver, (1) GLXD2 Handheld Transmitter with Beta 87A Supercardioid Condenser Microphone, (1) Microphone Clip, (1) PS42US Power Supply, (1) SB902A Rechargeable Lithium-Ion Battery, (1) USB Charge Cable and (1) Carrying Case.
