Extreme Trumpets Upgrade (+40% Power, Low Tone) Color:Chrome Built to Last

Built to Last

Reliable backup power: Keep a second battery charged and ready so your horn kit is never out of commission

The built-in air compressor is engineered specifically for consistent output

or from anywhere within that 260-foot radius with complete confidence

this train horn drill delivers an impressive number of blasts on a single charge

Extreme Trumpets Upgrade (+40% Power, Low Tone) Color:Chrome Built to LastExtreme Trumpets Upgrade +40% Power, Deep Low Tone Take your Horn Gun kit to the next level with the Extreme Trumpets Upgrade. Designed to fit every Horn Gun model in our lineup, this upgrade replaces your standard default trumpets with a set engineered to push output up to 40% louder while producing a commanding, ultra deep low frequency tone that truly earns the "train horn" title. What This Upgrade Does This is a direct replacement package for your