Sound Devices A20-HH Digital Wireless Handheld Microphone

Digital Handheld Microphone Designed for Professional Wireless Audio
The Sound Devices A20-HH is a fully digital wireless handheld microphone built for uncompromising sound quality, robust international use, and total flexibility in live production environments. It includes the CD1 dynamic cardioid capsule and supports interchangeable capsules for a wide range of vocal preferences. Engineered for reliability and clarity, it delivers premium performance for performers, engineers, and RF technicians working in live concerts, corporate events, theater, houses of worship, broadcast, and touring applications.

Compatible With All Sound Devices Astral Series Receivers
The A20-HH is designed to integrate seamlessly with the Sound Devices A20-Nexus, A20-Nexus Go, and A20-SuperNexus digital receivers. The mic transmits over the entire global UHF band from 470 to 1525 MHz in one unit, eliminating the need for region-specific hardware. Its digital modulation ensures low-latency audio with high fidelity, making it ideal for productions that demand sonic accuracy and RF flexibility across multiple locations.

Built-In RocketAntenna and GainForward Architecture Simplify Wireless Setup
Thanks to Sound Devices’ RocketAntenna technology, the A20-HH avoids common issues like grip dropouts, ensuring consistent RF signal transmission even when the mic is being held tightly. GainForward architecture eliminates the need to adjust gain settings on the transmitter—simply set trim levels at the mixing console. This makes the A20-HH easier to manage during fast-paced or multi-performer productions where precise control is critical.

Internal Recording and Extended Battery Life for Confidence in Any Situation
The A20-HH supports onboard recording directly to microSD at 48 kHz / 32-bit float, giving users the confidence of a local backup for every performance. Its integrated rechargeable lithium-ion battery delivers up to 10 hours of runtime per charge, enough to cover full shows or long rehearsal days without interruption. USB-C charging keeps it ready between uses with no need to remove batteries.

Customizable Controls, Shells, and Display for Maximum Usability
A sunlight-readable e-Paper display remains visible even when powered off, while the button-free design minimizes the chance of accidental operation during a performance. Optional control rings allow users to add button functionality as needed. The microphone body is also customizable with interchangeable shells, giving engineers the ability to color-code or brand their gear depending on the venue or production.

Tailored CD1 Mic Capsule Delivers Consistent Vocal Tone
The included CD1 capsule is a dynamic cardioid element designed specifically by Sound Devices. It offers a smooth, vocal-optimized response that remains consistent across all units, thanks to rigorous factory calibration. The capsule is also interchangeable, allowing compatibility with other industry-standard mic capsules when preferred for tone or application.

Engineered for Live Performance With Global Touring in Mind
From cruise ships to concert halls, the A20-HH is purpose-built to meet the demands of professionals working in complex RF environments. Its water-resistant, shock-absorbing shell makes it rugged enough for live use, while NexLink remote control enables full parameter adjustment without physically touching the mic—ideal for events where silent operation is a must.