Quad Train Horn for Flex® 24v Battery
Assembled in the USA using a genuine Flex® 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
Train Horn for Flex® 24v Battery Gun: Quad Air Horn – 140 dB of Power
The Train Horn for Flex® 24v Battery Gun by BossHorn is engineered from a brand-new genuine Flex® Impact Driver. No extra drill is required—this horn is ready to use out of the box. Just connect your 20V Flex® battery and experience a 140 dB train-horn blast through four premium metal trumpets. Designed for durability and portability, this horn gun is the perfect tool for outdoor events, safety, and unforgettable fun.
Key Features
- Quad Trumpets — Four tuned metal trumpets deliver a deep, commanding tone with maximum reach.
- 140 dB Output — Louder than most vehicle and truck horns for instant attention in any setting.
- Authentic Drill Build — Constructed from a genuine Flex® Impact Driver for strength and reliability.
- Durable Powder-Coated Finish — Available in Black, Chrome, or Red for extra resistance to wear and weather.
- Remote-Control Operation — Standard range up to 160 ft, expandable to 2000 ft with optional upgrade.
- Battery-Powered Convenience — Runs on Flex® 20V batteries or compatible aftermarket packs.
- Handheld & Ready — Lightweight, portable, and plug-and-play—no wiring or installation required.
Why Choose the Train Horn for Flex® 24v Battery Gun
The Flex® Quad Horn Gun delivers unmatched loudness and easy portability. At 140 dB, it ensures your signal is always heard. Built tough from a Flex® drill and enhanced with powder-coated trumpets, it’s engineered for both performance and durability. Just attach the battery, press the remote, and blast a sound that can’t be ignored.
Perfect For
- Outdoor events & sports games — Lead the crowd with maximum noise.
- Safety & emergency alerts — Loud enough to ensure awareness in critical moments.
- Boating & off-road use — Reliable signaling and communication in rugged environments.
- Wildlife deterrent — Keep unwanted animals away with ease.
- Everyday fun & pranks — Portable power for unforgettable reactions.
What’s Included
- Train Horn for Flex® 24v Battery Gun – Quad Trumpets (Pre-assembled)
- Wireless Remote Control (with pre-installed batteries)
- User Manual with setup and care instructions
Note: Battery and charger sold separately. Compatible with Flex® 20V batteries and aftermarket options.
Get the Train Horn for Flex® 24v Battery Gun today and experience BossHorn’s 140 dB of handheld power!
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"
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 24V Battery
Your BossHorn runs on standard Flex® 24V batteries — the same ones powering millions of 24V 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 24V tools? You're ready to go. New to the platform? 24V 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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