Hearing Protection Earbuds – 33 dB NRR Intrinsically Safe with In-Ear Mic

Intrinsically safe hearing protection earbuds: overview

These hearing protection earbuds (Probuds IS) are intrinsically safe earbuds with a built-in microphone, designed for hazardous environments where flammable gases, vapours or dust may be present.

They provide 33 dB NRR noise reduction while the in-ear microphone keeps voice input reliable, including where face-covering PPE makes standard voice control impractical.

You hear the headset's audio clearly while outside noise is reduced, which makes them ideal for very noisy environments.

Who the intrinsically safe hearing protection earbuds is for

Very noisy plants, compressor stations and hazardous areas where hearing protection is mandatory.

• Oil and gas
• Chemical plants
• Heavy manufacturing
• Workers wearing respirators
• Very noisy sites

Features in detail

33 dB NRR

Strong hearing protection.

In-ear microphone

Voice control works behind face-covering PPE.

Intrinsically safe

When used with the Navigator Z1.

Clear audio

Hear instructions and calls.

Foam tips

Comfortable, sealing fit.

Compatibility

Compatible with the RealWear Navigator 520 and Navigator Z1. Intrinsic-safety certification applies only when used with the Navigator Z1.

Choosing the right accessories

For the rugged headsets (Navigator 520 and Z1), choose a mount that matches your site rules: brand-specific hard hat clips give the firmest fit on MSA, Honeywell, Petzl, 3M and Japanese helmets; the universal hard hat band fits most other front-brim hard hats; the Workband 2, Tri-Band Strap and Overhead Band are for use without a hard hat or under a bump cap; and the ball cap suits outdoor, light-duty work.

For power, the Navigator 520 uses hot-swappable 2600 mAh batteries: pair spares with the single-bay charger and a Quick Charge 3.0 USB-A adapter. The lightweight headband model (Arc 3) charges over USB-C or on its desk/wall charging station, powered by a USB-C Power Delivery adapter.

For connectivity and sensing, the Mini LTE Modem adds 4G where there is no Wi-Fi, and the thermal camera module adds FLIR thermal imaging to the Navigator 520. Remember that only certified accessories keep the Navigator Z1 intrinsically safe.

Setup and use

1. Connect the earbuds to the headset's audio jack.
2. Roll and insert the foam tips for a good seal.
3. Test voice commands before entering the work area.

Care and maintenance

Replace foam tips when they lose shape or become dirty, wipe the earbuds clean, and inspect the cable before each shift.

Specifications

Shipping, returns and warranty

Shipping

Shipping is free on orders worldwide. Orders are prepared and dispatched within 1–3 business days and typically arrive within 4–8 business days in total, with tracking sent by email. Customs or public holidays can occasionally add a few days, and some items ship directly from our supplier.

Returns

You have 14 days from delivery to return the product for a refund, for any reason. It must be new, unused and in its original packaging with all accessories and documents. Contact us at metanexusxr@gmail.com with your order number to start the return. Consumables such as face cushions, foam pads or batteries showing wear cannot be refunded.

Warranty

Headsets and original accessories bought from our store are covered by a 2-year limited warranty against manufacturing defects. If anything goes wrong, email us your order number and a short description or photo and we will handle the claim with you.

Frequently asked questions

What is the noise reduction?

33 dB NRR.

Are they intrinsically safe with the 520?

No, the certification applies with the Navigator Z1.

Can I use voice commands with a respirator?

Yes, via the in-ear mic.

Are they intrinsically safe on any headset?

The certification applies only with the Navigator Z1.

Do they work with the IP66 model?

Yes, they also work with the Navigator 520.

How long does delivery take?

Shipping is free worldwide. Orders are dispatched within 1–3 business days and usually arrive within 4–8 business days in total, with tracking by email.

Can I return it if it is not right for me?

Yes, within 14 days of delivery, as long as it is new, unused and in its original packaging. Email metanexusxr@gmail.com with your order number to start a return.

Is it covered by a warranty?

Yes, a 2-year limited warranty against manufacturing defects on products bought from our store.

Is this a genuine part?

Yes. It is an original accessory made by the headset manufacturer, not a third-party copy.

Find more headset accessories, or compare enterprise XR headsets for frontline teams.