Compatible with any Milwaukee® M18 battery — no adapters needed Handcrafted with a rugged, ergonomic power-tool-style housing Dual metal trumpets — upgraded 2026 design for deeper tone Produces up to 130db — louder than a semi truck horn Up to 300ft wireless remote control range All-day battery life on a single M18 charge Same day ship-out Ready to use out of the box — just snap in your battery! New 2026 Model — Same Power, Refined Design The Dual Train Horn for Milwaukee® 18v Battery (2026 Model) is our latest take on the most popular entry-level portable train horn. We've refined the build, improved the trumpet tuning, and kept everything you already love — real train horn sound from a one-handed, battery-powered device that's ready to blast the second you snap in your M18 battery. This isn't a cheap air horn or a plastic toy. It's a handcrafted drill train horn built with a precision power-tool-style housing, fitted with dual metal trumpets and a high-output compressor. Compact, loud, and dead simple to use. What's New in the 2026 Model Refined trumpet tuning: Updated dual trumpet design delivers a deeper, fuller tone compared to previous versions. Improved build quality: Tighter assembly, cleaner finish, and better internal sealing for consistent performance. Same proven platform: Still runs on any Milwaukee® M18 battery, still includes wireless remote, still ready out of the box. Key Features Dual trumpet design: Two metal trumpets produce a deep, attention-grabbing blast — a real train horn sound, not a toy honk. Power tool housing: Each unit is handcrafted with a rugged power-tool-style housing — ergonomic grip, durable build, and a look that means business. 130db output: This battery-powered air horn rivals full-size truck horns without the permanent install. Wireless remote control: Trigger your horn from up to 300ft away — great for pranks, events, or hands-free use. Zero setup: No wiring. No air tanks. No installation. Snap in any Milwaukee® M18 battery and blast. The ultimate portable train horn kit. M18 battery powered: Hours of use on a single charge — compatible with any Milwaukee® M18 battery you already own (sold separately). Perfect For Tailgating & game day — be the loudest fan in the lot Camping & off-road — signal across open terrain Pranks & fun — the reason you're really here Boating & marine — portable horn, no permanent mount needed Emergency signaling — cut through any noise when it matters What's in the Box 1x Dual Train Horn for Milwaukee® 18v Battery — 2026 Model (fully assembled) 1x Wireless remote control (300ft range) Battery NOT included — works with any Milwaukee® M18 battery (sold separately) Milwaukee® and M18™ are registered trademarks of Milwaukee Tool. BossHorn is an independent company and is not affiliated with, endorsed by, or sponsored by Milwaukee Tool. Upgraded for 2026. Still unmatched. The Dual Train Horn for Milwaukee® 18v Battery is the smartest way to get real train horn power — compact, affordable, and ready to go.