Dual Train Horn for Hart® 20v Battery

Handcrafted in the USA using a genuine Hart® impact driver housing and custom-engineered components. Just insert your battery and it's ready to blast.

5.0 (1)
$175.00
Built in
The USA
dB Train Sound
1-Year Warranty
Pre-built Standalone Tool
No Installation · No Drill Needed
Color: Black
Trumpets · MEDIUM PITCH
Aluminum Alloy 1×14" + 1×12"
Customize Your Kit
INCLUDED
Remote Control (300ft) i
1 included free · extra remotes +$35 each
1
FREE
Long-Range Remote (2,000ft) i
Pro-grade range for events & large venues
1
+$59
2Ah Battery i
20V compatible · 200+ blasts per charge
1
+$30
Battery Charger i
20V compatible fast charger
1
+$30
Free Shipping, ships today
/
Free 90-day returns
BossHorn by Horngun Corp., not affiliated with Walmart Inc., states that this product is independently manufactured by Horngun Corp. and incorporates genuine Hart® 20V tool platform housing purchased through authorized dealers. Hart® is a registered trademark of Walmart Inc., used here solely to identify the incorporated component. BossHorn / Horngun Corp. is wholly independent of Walmart Inc.

Hart® Train Horn Gun - Dual Drill Horn

Hart® Train Horn Gun – Dual Drill Horn with Remote

The Hart® Train Horn Gun: Dual by BossHorn is built from a brand-new genuine Hart® drill. No extra drill required—this horn is ready to use out of the box. Just connect your Hart® 20V battery and unleash a thunderous 130 dB blast from its dual metal trumpets. Compact, rugged, and cordless, it’s the perfect sound tool for celebrations, signaling, or pranks.

Key Features

  • Dual Trumpet System — Two precision-crafted metal horns deliver a powerful and resonant train horn blast.
  • 130 dB Output — Extremely loud sound that commands attention instantly at any event.
  • Brand-New Drill Build — Constructed entirely from a genuine Hart® drill, never refurbished.
  • Ready to Use — Complete package; just snap in your battery and blast immediately.
  • Remote + Trigger Control — Operate directly or wirelessly from up to 160 ft away.
  • Air Compressor Included — Ensures reliable airflow and consistent horn performance.
  • Battery Compatible — Works with original Hart® 20V batteries and select compatible packs.
  • Same-Day Ship-Out — Ships fast so you can start making noise right away.

Why Choose the Hart® Dual Train Horn

With two tuned trumpets and heavy-duty construction, the Hart® Dual Horn offers a bold, commanding sound in a lightweight, portable design. Whether you’re looking to add excitement to a sporting event, make an announcement, or pull off the ultimate prank, this horn delivers reliable, high-impact performance every time.

Perfect For

  • Sporting events — Fire up the fans and celebrate in style.
  • Graduations & conventions — Ensure your announcements are heard clearly.
  • Outdoor activities — Great for boating, camping, or off-road adventures.
  • Emergency use — A reliable and powerful signaling tool when it matters most.
  • Pranks & fun — Surprise crowds with a loud, unforgettable blast.

BossHorn Quality You Can Trust

Every BossHorn product is handcrafted from a brand-new drill, guaranteeing durability and performance. The Hart® Train Horn Gun: Dual is lightweight, cordless, and engineered for long-lasting use. No extra drill is needed—just connect your battery and blast with confidence.

Order your Hart® Dual Train Horn today and experience the unmatched power of BossHorn!

Free U.S. ShippingAll orders ship free. Overnight available at checkout.
Same-Day DispatchOrders before 12:00 PM PST ship the same day with full tracking.
90-Day Money BackNo questions asked. Full refund + free return shipping.
InternationalShipping costs calculated at checkout. Duties may apply.
1-Year Full WarrantyComplete coverage on every Horn Gun we sell. No fine print.
15-Minute RepairsShip it or bring it in. Our technicians fix it on the spot.
Hassle-Free ProcessNo runaround. Contact us, ship it, get it back fixed.
Warranty covers the Horn Gun unit only. Batteries and chargers are not included.
No Maintenance RequiredBuilt tough. No servicing needed under normal use.
Avoid OverheatingGive short breaks during extended continuous use.
Remove Battery When StoredPrevents accidental activation and preserves charge.
Store in Cool, Dry PlaceSplash-resistant but not waterproof. Keep away from prolonged moisture.
Complete Your Kit
Most customers add these for the best experience
Dual Train Horn for Hart® 20v Battery
Dual Train Horn for Hart® 20v Battery
$175.00
$175.00
130DB
Max Volume
1 mile
Audible Range
160ft
Remote Range
4.9★
Customer Rating
Loudest Model
Best Value
2026 New Release
Up to
130dB

Real train sound. In one hand.

60 dB
Normal Conversation
100 dB
Car Horn
120 dB
Rock Concert
150 dB
BossHorn

"Your neighbors' car alarm just became the second loudest thing on the block"

// Exclusively at BossHorn

Patent Pending Technology

Volume Control

3 adjustable levels

Low110 dB Med130 dB Full150 dB
*Actual output may vary depending on battery charge level

Overheat Protection

Auto shut-off at 185°F

SafeWarmCut-off
Smart sensor → auto-cutoff → cooldown

Battery Protection

Prevents deep discharge

Auto-cutoff at 15% → preserves battery health
These features are patent pending and exclusive to the 2026 Boss Series. No competitor offers this technology at any price.
// Your Batteries. Your Horn.

Works With Any 20V Battery

Your BossHorn runs on standard Hart® 20V batteries — the same ones powering millions of 20V 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 20V tools? You're ready to go. New to the platform? 20V batteries start at $30 and work across 200+ tools.

2.0Ah
Compact
4.0Ah
Standard
5.0Ah
Extended
6.0Ah
500+ blasts
8.0Ah
High Output
12.0Ah
All Day Power
All 20V batteries
Aftermarket 20V-compatible
LED low battery indicator
Auto-cutoff at 15% — protects battery
Boss Series vs. Everyone Else

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
// Full Technical Data

Technical Specifications

Sound

Max Output130DB
Volume Levels3 levels (full, medium, soft)
Sound TypeFreight Train Horn Deep Low Tone
Trumpets2× Aluminum Alloy, Powder Coated
Sound DelayZero — Instant
Audible RangeUp to 1 mile

Remote Control

Standard Range160ft
Long-Range (optional)2,000 ft
Remotes Included1 (160ft range)
Remote Battery23A 12V (included)
Frequency433 MHz Encrypted

Power System

Battery PlatformHart® 20V
CompatibleAll 20V: 2.0–12.0Ah
Aftermarket BatteriesYes — any 20V-compatible
Blasts (6Ah)500+ short / 200 sustained
Battery IndicatorLED on body
Deep DischargeActive protection

Construction

Base UnitBrand-New Hart® 20V Impact Driver Body Shell
HousingImpact-Resistant Polymer
Thermal ProtectionSmart Motor Overheating Protection
Water ResistanceSplash-Resistant
Weight3.4lb (w/o battery)
Dimensions14" x 6" x 9"
One Horn. Endless Possibilities.

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.

// Everything You Need to Know

Got Questions?
We've got answers.

Can't find what you're looking for? Chat with us

The horn does NOT include a battery — it's available as an add-on right on this page. Just check the "2Ah Battery" option in the add-ons section above the Add to Cart button. We sell affordable aftermarket 20V-compatible batteries that work perfectly with your Hart® horn. Already own Hart® 20V tools? Your existing batteries will work too.
Up to 130 dB with 3 levels (full, medium, soft). Uses 2× Aluminum Alloy, Powder Coated for an authentic freight train sound. Audible up to 1 mile. Hearing protection recommended at close range.
Yes — use the soft volume level indoors. Full power is for outdoor use only. Always wear hearing protection.
With a 2Ah 20V battery: 500+ short blasts or ~200 sustained 2-second blasts. Easily lasts an entire game day, tailgate, or event. Higher Ah = more blasts. Smart Motor Overheating Protection.
Any Hart® 20V battery from 2.0Ah to 12.0Ah — including aftermarket 20V-compatible batteries. Already own Hart® power tools? Your existing batteries will work.
Every Dual Series includes 1 (160ft range) wireless remote (433 MHz Encrypted, battery included). Want more range? Add the Long-Range Remote (up to 2,000ft) from the add-ons. You can use multiple remotes at the same time.
Hart® Dual Series horn gun body (3.4lb), 2× Aluminum Alloy, Powder Coated, 1× wireless remote (160ft). Dimensions: 14" x 6" x 9". Battery and charger sold separately — add from the add-ons or use any 20V battery you own.
Splash-Resistant — don't submerge it. Store indoors when not in use. The Hart® body shell is impact-resistant polymer, built tough for outdoor use.
Legal to own and use on private property in all 50 states. Road/vehicle use varies by state — check your local laws. Popular for tailgating, boating, off-road, farms, and sporting events.
Every BossHorn comes with a 1-year warranty. If something goes wrong, contact our support team and we'll work with you to resolve the issue. Plus a 90-day money-back guarantee if you're not satisfied.
Boss Series (2026): 150 dB, 1× 300ft remote, 3 volume levels, patent-pending tech. Extreme Series: 150 dB, 2× 200ft remotes, 3 volume levels. Quad Series: 140 dB, 1× 160ft remote, 4 trumpets, great value. Dual Series: 130 dB, 1× 160ft remote, 2 trumpets, compact entry-level option.
Orders placed before 2 PM PST ship the same day. Free standard shipping (1–5 business days). Need it faster? Overnight shipping is available at checkout.