Remote includedNo drill neededCordless & portableBattery powered1-year warrantyAssembled in the USAShips same day · Before noon PT, Mon–Fri

Cordless train horns

Big sound.
No wires.

4.9/5850+ reviews

Portable train horns.
Powered by your tool battery.Horn + remote + Quick Start Guide. No drill needed.
Just connect a compatible battery.

Boss Horn cordless train horn and wireless remote in a warm workshop

Horn Guns / Cordless series

Start with your battery.

Choose your platform. We’ll show the horns that fit.

New series

Meet the Apex Line.

Dual or Quad. Make it yours.

Compatible with your Milwaukee M18 battery.

Our loudest, most advanced horn.

Apex Quad train horn for Milwaukee M18 batteries, product view 1 — Compatible with your Milwaukee M18 battery.

3 volume levels
Motor overheat protection
Battery discharge protection

4.9/5850+ store reviews

Apex Quad

Four trumpets. Colored rear caps.

Remote included

1-year warranty

Shop Apex Quad$385

Horn + remote + Quick Start Guide · USD. Compatible battery required.

More horns for this battery

The original lineup

Explore Classic.

All compatible horns

Compatible with your Milwaukee M18 battery.

Classic Dual train horn for Milwaukee M18 batteries

Classic Dual

From $185 USD

Classic Quad train horn for Milwaukee M18 batteries

Classic Quad

From $245 USD

Classic Five train horn for Milwaukee M18 batteries

Classic Five

From $270 USD

Classic Extreme train horn for Milwaukee M18 batteries

Classic Extreme

From $365 USD

See how it works.

A complete horn. Just connect a compatible battery.

Connect your battery.

Use a compatible battery you own,
or add one to your order.

Use the trigger or remote.

The wireless remote is included
with your horn.

You’re ready.

No drill, assembly or vehicle
installation needed.