Intrinsically Safe Flagship PELTOR Headset — Programmable DMR Digital Radio + Bluetooth for Hazardous Locations
The 3M PELTOR WS LiteCom Pro III (MT73H7B4D10NA-50) is the Intrinsically Safe neckband variant of the flagship Pro III series — CSA Group certified for use in hazardous locations including oil & gas, chemical processing, mining, and pharmaceutical environments where standard electronics are not permitted.
It combines a fully programmable dual-mode radio (analog + DMR digital, up to 70 channels), Bluetooth multipoint connectivity, level-dependent environmental listening, and an IP54-rated waterproof construction — all in a neckband configuration compatible with hard hats and PPE headwear.
Available with optional radio programming service: Select your variant to have the headset pre-programmed to match your existing radio channels (1–10 channels or 11–20 channels).
Key Features
Intrinsically Safe — CSA Group certified for use in hazardous locations; safe for explosive atmospheres and flammable environments
Up to 70 programmable channels — analog and DMR digital modulation; integrates directly into your existing radio network
DMR digital radio — clearer audio, longer range, and better spectrum efficiency than analog-only headsets
Bluetooth multipoint — connects simultaneously to two Bluetooth devices; supports A2DP stereo streaming
External device jack (4-pin XLR) — connect smartphones, shoulder mics, or additional radios via PTT button
Level-dependent environmental listening — ambient sound amplification for face-to-face communication and situational awareness without removing protection
IP54 waterproof headset — water and dust resistant construction for demanding outdoor and industrial use
Noise-canceling dynamic differential microphone — advanced VOX and PTT; clear speech in the harshest environments
We strive to keep our popular products in stock at all times. Orders for these items are processed promptly, and we aim to ship them out as quickly as possible.
In the rare event that a product you've ordered is not in stock, we will promptly notify you. Our team will provide you with an estimated restock date or offer alternative options. Your satisfaction is our priority, and we'll work closely with you to find a solution that best meets your needs.
Return Policy
If, for any reason, you are not satisfied with your purchase, our return and exchange policy allows you to return eligible items within 30 days from date of purchase. Please refer to our Returns Policy for more details.
Warranty policies vary significantly between products and companies, as they are determined by the individual practices and standards set by each manufacturer or retailer. If you want to learn more about a specifc manufactureres warranty or believe your product is covered under warranty, please reach out to us at 800-991-4569 or via email to learn more.
Warranties typically cover a specific period of time after the puchase date ranging from a few months to several years.
Warranties may cover defects in materials and workmanship while they may not cover defects and damages caused by normal wear and tear, modifications, external causes (natural disasters), etc.
First things first,First Source Wireless is AMAZING. The customer service is as good as you can get. 3M tech support also incredible. No waiting, call talk to person, no switching, they listen and fix! The Headset works Great !!!
First Source Wireless, are Amazing! They went way above and beyond. Customer service is Excellent. 3M cheaped out and didnt include their proprietary charge cord. First Source found a cord and got it to me fast.
My $1200 headset was useless without it. 3M =Fail, First Source= WIN
Absolutely incredible helmet!! A friend of mine got one a few years back
Absolutely incredible helmet!! A friend of mine got one a few years back. I was in the market for a new one and tried his on. Customizable comfort, lightest I’ve ever felt and every extra pad and tool to modify and tighten. Wilcox mount to go with my other Wilcox mounting gear. Arc style rails are lower profile and a proper fit for ear pro. Never buying a different helmet unless Galvion makes a caiman version 2
Thank you so much for your positive feedback! We are thrilled to hear that you are enjoying the Galvion Caiman Ballistic Helmet and that it meets all your needs.
New headband is great 👍 Environmental listening is game changer for hearing surroundings. Highly recommend this product
We're thrilled to hear you're loving the new headband and that the environmental listening feature has been a game changer for you — that's exactly what it was designed for! Your recommendation means the world to us.
Thank you so much for your kind words! We're thrilled to hear that you found exactly what you needed at First Source Wireless. Your satisfaction is our top priority, and we look forward to serving you again.
