Sound Devices A20-HH Control Switch

Customizable Control for Professional Microphone Applications
The Sound Devices A20-HH Control Switch is a specialized control ring designed for the A20-HH digital handheld microphone. Engineered to provide quick, tactile access to essential transmitter functions, this ring features a latching side switch and a six-segment multicolor LED bar. Whether you're triggering talkback, muting the mic, or engaging a pre-programmed command, this control ring gives users physical control without interrupting performance.

Purpose-Built for Fast, Reliable Control
Designed with live production needs in mind, the A20-HH Control Switch ring offers a mechanical sliding switch that latches into position, ensuring a command stays engaged until deliberately disengaged. This makes it ideal for toggling on/off states like RF mute, record start, or auxiliary audio routing. The LED bar provides immediate visual feedback, indicating switch status and level changes at a glance, even in dark stage environments.

Configurable Commands Through the A20-HH Menu
Each Control Switch ring integrates with the A20-HH’s internal menu system, allowing engineers or techs to assign specific functions to the switch. Available commands include power, mute, record, RF enable, and more. This flexibility ensures that the same mic can be adapted to different users or applications simply by changing the ring's configuration—no firmware or hardware modifications required.

Ideal for Talkback and Cueing Systems
The Control Switch ring supports aux audio routing assignments through Sound Devices’ Astral-series receivers. This means you can use the sliding switch to enable talkback functions or trigger alternate routing paths. Performers, technicians, and broadcasters can communicate directly with monitor engineers or production teams with a single gesture, eliminating the need for separate communication systems.

Quick Installation with Modular A20-HH Design
Like all A20-HH control rings, the Control Switch installs quickly and securely without tools. It snaps into place on the handheld transmitter and is immediately recognized by the A20-HH system. Its durable design and compact footprint make it suitable for stage use, corporate AV, broadcast, or touring environments where reliability and speed are critical.

Seamless Integration with Astral Wireless Ecosystem
The A20-HH Control Switch is fully compatible with Sound Devices’ NexLink remote control system and Astral-series digital wireless receivers. Remote configuration, monitoring, and control can be performed via the A20 Remote App, giving you complete command of the mic from your mobile device or console interface.