Talk in real-time
With DECT7 wireless technology, you just talk. No delays. No waiting your turn. No buttons to push. Talk when you want to; interrupt when you need to; warn your team when you have to.
All Apex 3-Series
Built & serviced in Lemoyne, PA — by firefighters, since 2009
Apex 3-Series
DECT7 wireless headset with Advanced Hearing Protection. Talk hands-free with your team, without having to shout.
The APX379 adds Bluetooth. Both Apex 3-Series headsets give you DECT7, 24dB NRR, Stereo Listen-Through and up to 1,600 feet of range. Choose the APX379 if you want to take calls or listen to music through your headset.
The headband converts from over the head to behind the head, and reconfigures for under-helmet wear, which works for most hard hats and ball caps. Hardhat Adapters mount each ear muff to an adjustable clip that fits most standard and specialty hard hats. Tell us what your team wears and EFES will help you choose.
Displayed prices come from the Sonetics 2022 USA & Canada price list, effective July 7, 2022, and are not current quotes. EFES confirms current pricing and availability once the configuration and radio compatibility have been reviewed. Call (800) 504-2044.

Product overview
The Sonetics APX377 lets you have a hands-free conversation with your team without having to shout. It protects you from dangerous noise levels while automatically adjusting audio to a comfortable listening level.
With DECT7 wireless technology, you just talk. Full-duplex, real-time conversation means no delays, no waiting your turn and no buttons to push. Stereo Listen-Through lets you hear alarms and warnings, monitor your equipment, or have a face-to-face conversation with someone without a headset, all without removing your hearing protection. Passive noise reduction gives you 24dB NRR.
Talk for up to 24 hours on a 4-hour charge, with up to 1,600 feet of range (line of sight). Connect a portable two-way radio through the direct-wire input with a Sonetics PR Adapter (sold separately) and close the distance to team members beyond 1,600 feet.
The APX377 connects to a SON150 wireless Base Station for installed systems or a wireless ComHub for mobile team communication. Need Bluetooth? See the APX379. Working where hearing protection isn't required? See Apex Connect.
Stay protected, stay aware
The APX377 gives you hands-free, real-time team communication with Advanced Hearing Protection.
With DECT7 wireless technology, you just talk. No delays. No waiting your turn. No buttons to push. Talk when you want to; interrupt when you need to; warn your team when you have to.
All Apex 3-Series
Open mics mean you can keep your hands where they belong: on your work. No more button mashing or fumbling with shoulder mics.
24dB NRR passive noise reduction protects your hearing. Stereo Listen-Through microphones on the front of each ear muff let you hear alarms, warnings and equipment, or talk face-to-face with someone without a headset, without removing your hearing protection.
All Apex 3-Series
Up to 1,600 feet (line of sight) covers work zones large and small. Need to go farther? Connect your portable two-way radio.
Up to 1,600 ft
The APX377 automatically limits sudden loud sounds, such as gunshots, from reaching you in Stereo Listen-Through mode, just like shooter muffs.
Up to 24 hours of talk time on a 4-hour charge. Schedule multiple shifts with confidence. The battery is user-replaceable.
All Apex 3-Series

The APX379 adds Bluetooth. Every other feature on this page is shared by both models.
Apex 3-Series headsets
Model lineup
Capabilities and pricing from the Sonetics 2022 USA & Canada price list, effective July 7, 2022. Prices reproduce that list and are not current quotes; EFES confirms pricing and availability on your quote.
Swipe to compare
| Model | Configuration | Bluetooth | Listen-Through | Price |
|---|---|---|---|---|
| APX377-OH | Over the head | No | Stereo | $995 |
| APX377-BH | Behind head | No | Stereo | $995 |
| APX377-HH | Hardhat | No | Stereo | $1,045 |
| All APX377 models | DECT7 wireless | 24dB NRR | Up to 1,600 ft (line of sight) | Up to 24 hr talk time |
Before you request a quote
Bluetooth. The APX379 adds Bluetooth so you can take calls, listen to music or connect a two-way radio wirelessly. DECT7, 24dB NRR, Stereo Listen-Through, range of up to 1,600 feet and up to 24 hours of talk time are the same on both.
The headband converts from over the head to behind the head, and reconfigures for under-helmet wear, which works for most hard hats and ball caps. Hardhat Adapters mount each ear muff to an adjustable clip that fits most standard and specialty hard hats. Tell us what your team wears and EFES will help you choose.
Up to 1,600 feet (line of sight) from the ComHub or Base Station. Steel, concrete and equipment between you can reduce that, which we take into account when we configure your system. Need to go farther? Connect your portable two-way radio.
Turn on Stereo Listen-Through. Microphones on the front of each ear muff let you hear outside sound on demand, and you control the volume. Hear alarms, monitor your equipment or talk with someone without a headset, without removing the headset and its hearing protection.
Yes. Swap silicone ruggedizers for each individual or team. Colors include safety yellow, safety orange, safety pink and glow-in-the-dark, and the ruggedizers help protect the headset.
Configured and supported by EFES
Tell us your team size, the head protection your team wears, how far apart you work and the radios you already own.
EFES will quote the headsets with the ComHub or Base Station and radio interfaces as one system.
Call (800) 504-2044 or request a quote. EFES is at 440 Oak Street, Lemoyne, Pennsylvania.
