Shure AD2/SM58 Digital Handheld Wireless Microphone Transmitter with SM58 Capsule (G57: 470 to 616 MHz)

The Shure AD2/SM58=-G57 is a transmitter that is handheld and wireless, carrying the SM58 capsule that uses dynamic technology and offers a cardioid pickup pattern. Designed for Axient Digital systems, it works in the G57 band from 470 to 616 MHz and delivers a signal that uses 24-bit digital resolution and stays clean across demanding venues.

The transmitter offers two transmission modes that suit different RF environments. Standard mode focuses on maximum audio fidelity for concerts and presentations, while High Density mode enables tighter channel spacing when spectrum space is limited. RF power can be set to 2, 10, or 35 mW, allowing compliance with local regulations or extended range up to about 100 meters in line-of-sight conditions. A built-in LCD and infrared sync streamline setup, and AES 256-bit encryption keeps confidential material secure during corporate or broadcast events.

Power options are flexible. Two AA batteries provide roughly eight hours of operation, and the optional SB900A rechargeable pack stretches runtime to about nine hours and supports docked charging through external contacts. An offset gain range from -12 dB to +21 dB helps engineers tailor levels to any vocalist, and the interchangeable capsule design accepts other Shure heads when a different tonal character is preferred.

Whether it is used on tour, installed permanently in a theater, or added to a rental inventory, this transmitter offers the clarity, reliability, and workflow features that audio professionals count on every day.

• Includes the SM58 capsule that is dynamic and has a cardioid pickup pattern
• Operates with Shure Axient Digital receivers in the G57 band from 470 to 616 MHz
• AES 256-bit encryption protects sensitive audio feeds
• Selectable RF power at 2, 10, or 35 mW with range up to about 100 meters line-of-sight
• 184 MHz tuning window accommodates flexible frequency planning
• High Density mode doubles available channels in crowded RF environments
• Offset gain adjustment from -12 dB to +21 dB matches a wide range of vocal levels
• Runs about eight hours on two AA batteries or nine hours on the optional SB900A rechargeable pack
• External charging contacts support docked charging without removing the battery
• Backlit LCD and infrared sync speed up configuration even on dark stages