Auto Air Horn

Power, Control, and Real-World Reliability

BossHorn’s auto air horn pairs real metal train trumpets with a high-output air compressor and our custom control PCB—three selectable volume levels, motor overheat protection, and battery deep-discharge protection. It uses genuine cordless-drill batteries from major brands, delivers instant blasts on demand, and includes a wireless remote with up to 2,000 ft range. Hand-assembled in the U.S., these units are built for repeat use, loud emergency signaling, and easy, tool-free operation.

Portable, Tool-Brand Compatibility

The auto air horn works with 15+ major tool brands so you can snap in a compatible battery and go. Expect firm metal trumpets that cut through traffic noise and a compact compressor that sounds impressive without taking up much space. Ideal for roadside safety, farm equipment, and off-road runs—no mounting or wiring required.

Why This Matters

Looking for a horn you can trigger from across a worksite with no installation?

We build each horn by hand in the U.S.

We use real components from cordless drills and impact drivers.

Our control PCB protects the motor and battery during heavy use.

Remote range up to 2,000 feet means you can signal from a distance.

Every unit ships with a one-year warranty for peace of mind.

The auto air horn gives you museum-grade trumpets and industrial-class components in a portable package. It’s loud, durable, and simple to use—perfect for drivers, contractors, and outdoor enthusiasts who need reliable signaling without permanent install.