Even at 95dB, no shouting.
Take both site radio traffic and calls from the prime contractor without removing your earpiece. Operate it by voice alone with gloves on, and with IP55 dust and water resistance it can be used in dust and light rain.
B-EAR / OPEN-EAR BLUETOOTH HEADSET
* Equipping an open-ear Bluetooth headset with both a voice command mode and a sidetone mode is an industry first (based on our own research, as of August 2026).
Open-ear Bluetooth headset
Bluetooth 5.1 / IP55 / Talk time up to 15.5 hours
THE PROBLEM
Shouting. Saying it twice. Hunting for a button. Taking out the earpiece.
Somewhere along the way, communication on site came to take “an unnatural state” for granted.
That is not a problem with the people who do the work. It is a problem with the communication equipment.
VEXA took this as the starting point of its design.
Your own voice is drowned out by the noise, and without realizing it you are shouting. Your throat goes hoarse, your tone turns harsh, and since you can’t tell whether you got through, you say the same thing twice.
To press the talk button, a gloved hand stops. A hand lets go of a tool. A hand steadying the person in front of you pulls away.
You take out your earpiece to answer the phone.
For those few seconds, you are completely cut off from the site.
OPEN-EARA design that leaves the ear canal open
An open design that leaves your ears uncovered. The sounds around you come straight through: your crew’s voices, approaching heavy machinery, alarms.
You can layer communication on top without shutting your ears off from what is happening on site.
Because it is held by ear hooks and a band behind the head, it is less likely to get in the way of helmets or masks, and your ears don’t get sweaty inside. Up to 15.5 hours of talk time, so you can keep it on all day long: that is why we chose this shape.
Two windscreens, medium and large, are included to deal with wind outdoors.
SIDETONEYour own voice comes back through the earpiece
When people can no longer hear their own voice, they raise it without realizing.
This is known as the Lombard effect. For a long time, communication in noisy workplaces has rested on this vicious circle.
Sidetone returns your own speaking voice to the earpiece. Because you are always aware of how loudly you are speaking, you never push your voice harder than needed, and you can keep the conversation going in your natural voice. Just say “Saidotōn ON” (Japanese for “sidetone on”) to switch it.
In fact, the Lombard effect is strongest with open-ear designs. VEXA removes this structural weakness of open-ear headsets while remaining open-ear.
* VEXA is not hearing protection. In work environments with an equivalent continuous noise level of 85dB or higher, use separate hearing protection in accordance with the Guidelines for the Prevention of Noise Hazards issued by Japan’s Ministry of Health, Labour and Welfare.
VOICE COMMANDOperate it just by speaking
Once you switch to voice command mode, muting the mic and adjusting the volume can both be done by voice alone.
Finding the device, touching it, pressing it: that whole sequence is no longer needed.
With gloves on. Up at height. Hands on the wheel. On some sites, the few seconds spent hunting for a button decide quality and safety.
Answering or declining an incoming call is also done entirely by voice.
No special way of speaking is needed.
Just say the usual words, in your usual voice.
| SAY (IN JAPANESE) | ACTION |
|---|---|
| Onryō agete | Volume goes up one step |
| Onryō sagete | Volume goes down one step |
| Saidotōn ON | Sidetone turns ON |
| Saidotōn OFF | Sidetone turns OFF |
| Maiku ofu | Mic is muted |
| Maiku on | Mic is unmuted |
| Hai, demasu | Answers the incoming call |
| Iie, demasen | Declines the incoming call |
* To switch between voice command mode and normal mode, press and hold the multifunction key and the “−” key together for 3 seconds.
A voice prompt plays when the mode switches.
* “Hai, demasu” and “Iie, demasen” work only when a phone call is coming in. On iPhone, you can respond after the second voice prompt. Operation on Android is not guaranteed.
* Voice prompts can be switched between Japanese and English.
MULTIPOINTConnects to two devices at once
The prime contractor calls. You take out your earpiece and hold your smartphone to your ear.
For those few seconds, you are cut off from the site.
VEXA supports connection to two devices at once (multipoint pairing). Register ALVO 1.9 and your smartphone, and it connects to both automatically as soon as you power it on. You can take an incoming call on the spot while staying connected with your crew.
No need to switch from one device to another.
VEXA connects to two devices at once via Bluetooth. ALVO 1.9 handles DECT communication on site, and VEXA brings its audio and your smartphone calls together in one ear.
* Multipoint connection can be switched ON/OFF.
The voice command for declining calls works only with single pairing.
FOR THE FIELD
What “in your natural voice” means differs a little from site to site. But what VEXA takes away is the same on every site.
Take both site radio traffic and calls from the prime contractor without removing your earpiece. Operate it by voice alone with gloves on, and with IP55 dust and water resistance it can be used in dust and light rain.
For work communication between staff at nursing-care and welfare facilities.
Operate communication even with both hands full, and get your message across without raising your volume during quiet hours.
Give instructions in a calm voice. Operate it by voice alone without stopping play, and reach people outside without cutting off bench communication. IP55 gives peace of mind even when you sweat.
Speak in your usual voice without worrying about the people around you.
Switch calls without taking your hands off your documents. About 60 minutes of charging gives up to 15.5 hours of talk time.
WITH ReaCom ALVO 1.9
ReaCom ALVO 1.9 is an on-site communication system that makes “can converse” a reality through fully simultaneous talk. Because you can speak while the other person is still talking, you can correct on the spot and warn on the spot.
VEXA adds “in your natural voice.”
The system makes conversation possible; the headset keeps your voice natural. For sites already using ALVO 1.9, and for sites now considering it.
SPECIFICATIONS
| Product name | VEXA |
|---|---|
| Model number | SSW-1121 |
| Earphone type | Open-ear wireless earphones |
| Bluetooth version | 5.1 |
| Range | Approx. 10m |
| Simultaneous connections | 2 devices (multipoint pairing) |
| Talk time | Up to 15.5 hours (at 80% volume) |
| Music playback time | Up to 16.5 hours (at 80% volume) |
| Charging time | Approx. 60 minutes |
| Charging port | USB Type-C |
| Charging voltage | DC 5V |
| Dust and water resistance | IP55 |
| Voice prompts | Japanese / English (switchable) |
| Japan radio certification no. | 219-268165 |
| Warranty | 1 year |
CONTACT
The size of your site, how many people need to communicate, how loud it gets.
The best setup depends on those conditions.
Whether you’d like a catalog sent, a hands-on trial, or advice on combining it with your existing equipment, we’re glad to start wherever you are.