Portable Train Horn

Portable train horn: a cordless, drill-battery-powered air horn you can carry and trigger from afar—ideal for off-road convoys, farm alerts, or emergency signaling. Want a portable train horn that works with my DeWalt batteries?

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Train Horns You Can Carry

Built for loud, reliable performance

BossHorn’s portable train horn pairs metal train horn trumpets with a high-output air compressor and a custom control PCB for selectable volume levels, motor overheat and deep-discharge protection. The proprietary control system lets you trigger the horn from up to 2,000 feet away with a wireless remote, and kits accept batteries from top tool brands so you can swap power quickly.

Ready-to-use portability and practical benefits

This portable train horn plugs into compatible cordless batteries so there’s no vehicle install or wiring required. Expect instant, attention-grabbing sound for road safety, campsite signaling, or farm use, plus easy storage and simple battery swaps for longer outings.

Why people choose this horn

Looking for a loud, cordless horn that won’t need a permanent install?

We hand-assemble every BossHorn in the U.S. using real drill and impact driver components.

Our custom PCB gives selectable volume and protects the motor and battery.

We source housings and trumpets built from metal, not plastic.

BossHorn started the cordless drill-powered horn trend and keeps improving it.

Every kit ships ready to use and includes a one-year warranty for peace of mind.

On top of the sound and safety, the portable train horn is designed to be dependable in outdoor, roadside, and emergency scenarios—easy to carry, quick to power up, and loud enough to cut through traffic noise without permanent mounting or complicated setup.