Extreme Series Train Horn for Milwaukee® 18v Battery
Assembled in the USA using a genuine Milwaukee® impact driver housing and custom-engineered components with domestic and imported parts. Just insert your battery and it's ready to blast.
⚠ WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more info: P65Warnings.ca.gov
Comparing Each Train Horn for Milwaukee® 18v Battery
Extreme Series — Our Loudest Train Horn for Milwaukee® 18v Battery
- Compatible with any Milwaukee® M18 battery — no adapters needed
- Handcrafted using a brand new Milwaukee® Impact Driver housing
- Upgraded metal trumpets — maximum volume and tone
- Produces 150db train sound — our loudest model
- Up to 160ft wireless remote control (up to 2000ft with long-range remote upgrade)
- All-day battery life on a single M18 charge
- Same day ship-out
- Ready to use out of the box — just snap in your battery!
When Regular Loud Isn't Loud Enough
The Extreme Series is our flagship portable train horn — built for people who want the absolute maximum volume from a handheld device. This isn't just another battery-powered air horn. It's a competition-grade, handcrafted drill train horn with upgraded trumpets engineered to push every last decibel out of the M18 platform.
Every unit is built by hand using a Milwaukee® Impact Driver body as the housing, fitted with our premium metal trumpet array and a high-output compressor. The Extreme Series delivers the deepest, loudest, and most aggressive train horn sound in our lineup.
Looking for something more budget-friendly? Check out our full collection of Handheld Air Horns.
Extreme Series Features
- Premium trumpet upgrade: Larger, precision-tuned metal trumpets deliver more volume and a deeper tone than our standard models. This is the loudest portable train horn we make.
- Power tool housing: Each horn is handcrafted using a Milwaukee® Impact Driver body — ergonomic grip, rugged build, and built to last.
- 150db output: Louder than a jet engine at takeoff distance. This battery-powered train horn rivals permanently installed truck horns.
- Wireless remote control: Standard 160ft range included. Upgrade to the long-range remote for up to 2000ft — trigger your horn from across the venue.
- Zero setup: No wiring. No air tanks. No installation. Snap in any Milwaukee® M18 battery and unleash. The ultimate grab-and-go train horn kit.
- M18 battery compatibility: Hours of use on a single charge — works with any Milwaukee® M18 battery you already own (sold separately).
Where the Extreme Series Dominates
Whether you call it a drill train horn, a handheld air horn, or a portable train horn — the Extreme Series is built for moments that demand maximum impact:
- Tailgating & sporting events — the loudest blast in any parking lot or stadium
- Competitions & car meets — when you need to out-horn everyone else
- Off-road & overlanding — signal across miles of open terrain
- Boats & marine use — a powerful, portable horn with no permanent install
- Emergency signaling — 150db cuts through anything when you need to be heard
- Pranks & fun — you already know
What's in the Box
- 1x Extreme Series Train Horn for Milwaukee® 18v Battery (fully assembled)
- 1x Wireless remote control (160ft range)
- Battery NOT included — compatible with any Milwaukee® M18 battery (sold separately)
Milwaukee® and M18™ are registered trademarks of Milwaukee Tool. BossHorn is an independent company and is not affiliated with, endorsed by, or sponsored by Milwaukee Tool.
No compromises. No apologies. The Extreme Series Train Horn for Milwaukee® 18v Battery is the loudest, most powerful portable horn we've ever built — for people who refuse to blend in.
Fully Assembled. Ready to Blast.
Arrives pre-built as a complete tool — just snap in your battery and hit the remote.
Unbox & Snap In Your Battery
Arrives fully assembled — a complete tool, not a kit. Just insert a matching battery and you're good to go.
Trigger or Remote — Your Call
Pull the trigger on the tool itself, or blast from a distance with the included wireless remote (up to 300ft). Long-range 2,000ft remote also available.
Instant Blast
No delay, no warm-up — real train horn sound the moment you press. Three loudness levels for any task: Dual, Quad, and Extreme.
Real train sound. In one hand.
"Your neighbors' car alarm just became the second loudest thing on the block"
Seen in the Wild
Patent Pending Technology
Volume Control
3 adjustable levels
Overheat Protection
Auto shut-off at 185°F
Battery Protection
Prevents deep discharge
See It. Hear It. Want It.
Works With Any M18™ Battery
Your BossHorn runs on standard Milwaukee® M18™ batteries — the same ones powering millions of M18™ tools worldwide. No proprietary battery, no lock-in. Pick any capacity from 2.0Ah to 12.0Ah. The higher the Ah, the more blasts per charge. Already own M18™ tools? You're ready to go. New to the platform? M18™ batteries start at $30 and work across 200+ tools.
See the Difference
Same price range. Completely different league.
| Feature | Boss Series | Others |
|---|---|---|
| Price | $365 | $355 |
| Sound Output | 150 dB | 130 dB |
| Perceived Volume | 4x louder | 1x |
| Trumpets | 4 (tuned) | 2 |
| Remote Range | 300 ft (2,000 ft avail.) | 160 ft |
| Remotes Included | 1 | 0 (extra cost) |
| Volume Control | ✓ 3 Levels | ✗ |
| Overheat Protection | ✓ | ✗ |
| Battery Protection | ✓ | ✗ |
| Built in USA | ✓ | Unknown |
| Warranty | 1 Year | ✗ |
| Return Policy | 90 Days | 30 Days |
Technical Specifications
Sound
Remote Control
Power System
Construction
Where to Use It
Sporting Events
Electrify the stadium. When your team scores, the entire parking lot will know.
Tailgating
The ultimate party starter. Remote-trigger from your lawn chair. Be the legend.
Trucks & Off-Road
Mount it or hand-hold. Louder than any factory or aftermarket horn on the road.
Boats & Marine
Fog signal, dock arrival, or just pure fun on the water. Audible for a mile.
Camping & Hiking
Bear and wildlife deterrent. Recommended by outdoor experts for backcountry safety.
Emergency Signaling
Audible up to 1 mile. Alert rescue teams when every second counts.
Construction Sites
Shift change signal, safety alerts, or just getting everyone's attention. Fast.
Content Creation
Prank videos, reaction content. This is your viral moment on TikTok & YouTube.
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