Shure ULXD2/B58-G50 Wireless Handheld Transmitter With BETA 58A Microphone, G50 Frequency (64 MHz) 470 – 534 MHz. Includes ULXD2/B58, 2 AA Batteries, Microphone Clip, Zipper Bag, And User Guide.
 
With an interchangeable BETA 58 microphone cartridge, the ULXD2/B58 delivers uncompromising audio quality and RF performance, and AES 256-bit encryption for secure transmission.
AES 256-bit encryption for applications for which secure transmission is needed
Proprietary Shure Gain Ranging optimizes the system’s dynamic range for any input source, eliminating the need for transmitter gain adjustments
Optional Shure SB900 lithium-ion rechargeable battery pack provides over 12 hours of battery life, precision metering in hours and minutes, and zero memory effect
External charging contacts for docked charging (with the SBC200 Dual Docking Charger)
Transmitter Mute Mode repurposes the On/Off switch into a mute switch, enabling audio muting while preserving RF channel presence
Backlit LCD with easy to navigate menu and controls
Rugged metal construction
Frequency and power lockout