Small Air Horn

A small air horn is a compact, cordless train horn system that uses real drill batteries and metal trumpets for loud, instant signal in outdoor, marine, and tailgate settings. Need a small air horn that pairs with DeWalt or Milwaukee batteries?

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Small, Portable Air Horns

Powerful Components, Thoughtful Controls

BossHorn’s small air horn pairs a high-output air compressor with genuine metal train horn trumpets and a custom control PCB. You get three selectable volume levels, motor overheat protection, and battery deep-discharge protection. The wireless remote reaches up to 2,000 feet, and units accept batteries from major tool brands like DeWalt, Milwaukee, and Ryobi for true plug-and-play loudness.

Ready-to-Use Portability

small air horn systems arrive ready out of the box—no drilling, no vehicle mounting. They feel solid when you pick them up: metal trumpets, rugged compressor hum. Great for tailgates, boating, off-road signaling, or personal safety, and perfect when you want an instant, removable alert without permanent installs.

Range, Reliability, and Why It Matters

Looking for a small air horn that works with DeWalt batteries and a long-range remote?

We hand-assemble every unit in the U.S.

We use original components from real cordless drills and impact drivers.

BossHorn invented drill-powered wireless train horns first.

Our custom PCB gives selectable volumes and protection features you actually need.

Every horn comes with a one-year warranty for peace of mind.

The third key reason to choose a small air horn here is reliability: built from industrial-grade components and engineered for repeat, loud cycles without overheating, these units keep performing when you need them most. The control board prevents battery over-discharge and motor stress, so portability doesn’t mean compromise.