The Sound Devices A20-HH Control 3 is a swappable control ring for the A20-HH microphone/transmitter, offering unmatched customization and flexibility. Featuring three programmable buttons with multicolor status LEDs, this modular ring allows users to configure commands such as power, mute, record, RF on/off, and more via the A20-HH settings menu. Designed for seamless integration, it also enables Aux audio routing for instant talkback functionality—perfect for musicians, broadcasters, and live performers who need real-time communication without additional equipment. Easily swap out control rings to adapt to different applications.
