Extreme Series Train Horn for Bosch® 18v Battery

The green flag drops, the crowd is a quarter mile out, and every one of them needs to hear it. That is the exact job the Extreme Series was engineered for: a 150 dB blast pushed through four metal trumpets, fired from the unit itself or from a remote across the lot — all running on the same Bosch® 18V battery that powers your tools.

• 150 dB output — a deep, resonant train-horn tone from four precision-aligned metal trumpets
• Bosch® 18V compatibility — accepts any Bosch® 18V lithium-ion pack (battery sold separately)
• Wireless remote included — pre-synced and rated to 160 ft; an optional long-range remote extends control to 2,000 ft
• Hours of use per charge — one battery keeps it sounding through a long day
• No air tank, no cords — a fully cordless, battery powered air horn system, self-contained and portable
• Zero installation — click a battery in and it is ready to fire
• Same-day ship-out on orders placed before 12 PM PST

Why the Extreme Series Tier

This is the most powerful horn in our Bosch® lineup, and the numbers explain why. Each unit is assembled by hand, and the four-trumpet array is aligned so the 150 dB output lands as a layered, authentic train-horn note instead of a flat blare. It feeds off the same 18V packs that run your drill and impact driver, so spare power is never far away. The 2,000 ft long-range remote option is the tier's defining spec: place the horn where it projects best, then trigger it from where you actually stand — the far bleachers, the dock, the staging lane.

It earns its keep anywhere sound has to travel. Arena celebrations, festival gates, open-water signaling from a boat, camp perimeters, and safety alerts where a shout or a phone simply will not carry — the Extreme Series covers the distance with margin to spare.

In the Box

• Extreme Series train horn unit
• Pre-synced wireless remote (160 ft range)
• Battery sold separately — works with any Bosch® 18V battery

Bosch® is a registered trademark of its respective owner. We are an independent seller and are not affiliated with, endorsed by, or sponsored by the trademark owner. All references to Bosch® are about battery compatibility only. Battery not included.