Motorola GMMN4584 Savox HC-2 Headset

The Motorola GMMN4584 (also listed as GMMN4584A) is a Motorola-branded Savox HC-2 helmet-mounted headset designed for firefighters, rescue teams, and industrial professionals operating in extremely noisy environments. It uses a bone-conduction microphone that captures speech through skull vibrations, allowing clear communication even while wearing breathing apparatus, face masks, and full protective gear.

The dual-speaker design delivers audio to both ears for improved intelligibility, while the lightweight helmet-mounted construction installs quickly without tools. This non-ATEX version is intended for standard environments; ATEX-certified variants are available separately for hazardous areas.