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Review Summary
Accidents happen where life happens. Protect your favorite Adorama products and purchase a protection plan to stay covered from accidental damage, mechanical or electrical failure, and more.

If we can’t fix it, we’ll replace it at no additional cost.

Protect your product from drops, spills, and more.

Enjoy your gear without fear. We have you covered!

When regular use of your product over time results in mechanical or electrical failure.

We will never charge you a deductible after the purchase of a plan.

Our claims process is simple & easy and our customer service team is happy to help.
Adorama Protect powered by Extend is available for purchase to customers in the United States. Not available for purchase Internationally or in U.S. Territories.
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Axient Digital Wireless Systems
BETA 58A with Supercardioid polar pattern
X55: 941 to 960MHz
184MHz
Standard
High Density
Standard Mode:
17 Ch/6MHz
23 Ch/8MHz
High Density Mode:
47 Ch/6MHz
63 Ch/8MHz
Yes
-12 to 21dB (in 3dB steps)
Unbalanced
1kHz at 1% THD: 145dB SPL, typical (SM58)
Integrated Single-Band Helical
<200kHz
Shure Axient Digital Proprietary
2mW, 10mW, 35mW
Shure SB900A Rechargeable Li-Ion or LR6 AA batteries 1.5V
Shure SB900A: >11 hours
Alkaline: 8 hours
Cast aluminum
SBC100, SBC200 & SBC800 (for SB900/SB900A), SBRC networked rack charger
256 x 51mm (10.08 x 2.01")
Without batteries: 340g (11.99 oz)
042406503570
The AD2/B58 is a handheld wireless microphone transmitter compatible with Axient Digital Wireless Systems. With breakthrough RF performance and wide tuning up to 184 MHz, the AD2/B58 puts professional-quality wireless digital audio within reach. AD2/B58 delivers impeccable audio quality and RF performance with wide-tuning, High Density mode and encryption. Features durable metal construction, rechargeable power with dockable charging and black finish.
 Works with Axient Digital Wireless Systems
 Features the BETA 58A cartridge
 Performance 
 20Hz to 20kHz range with flat frequency response
 Automatic input staging optimizes gain setting
 AES 256-bit encryption-enabled for secure transmission
 >120dB dynamic range
 100m (300') line-of-sight operating range
 Selectable modulation modes optimize performance for spectral efficiency or audio quality: Standard - optimal coverage, low latency and High density - dramatic increase in max system channel count
 Switchable Power Levels = 2/10/35mW (region dependent)
 Built-in tone generator and RF markers to facilitate range-testing
 Design 
 Interchangeable Shure microphone cartridges
 Backlit LCD with easy to navigate menu and controls
 Rugged metal construction
 Menu and power lockout
 Power 
 Up to 8 hours continuous use with 2x AA alkaline batteries
 Shure SB900A lithium-ion rechargeable battery provides extended battery life, precision metering and zero memory effect
 External charging contacts for docked charging
Note:
When purchasing separate wireless components, please match their frequency bands to ensure proper system operation.