With an interchangeable BETA 58A® microphone cartridge, the ULXD2/B58 delivers uncompromising audio quality and RF performance, and AES 256-bit encryption for secure transmission. The ULXD2/B58 Handheld Wireless Microphone Transmitter works with ULX-D Wireless Systems. Note: When purchasing separate wireless components, please match their frequency bands to ensure proper system operation. Features 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 ULXD2 WIRELESS HH WBETA58 HEAD from Shure is 100% original and is available at Edge Electronics. Speak to our expert for booking a live demonstration. After sales customer service is an integral part of our business ethic and is taken very seriously.