Meet the Bosch Train Horn: Thunderstrike 5-Trumpet Model, the loudest and most commanding horn in the Bosch lineup.
Hand-built from a genuine Bosch 18V impact drill, it features five precision-tuned metal trumpets engineered for deep, multi-layered resonance.
Delivering up to 140+ dB, the Thunderstrike creates a wall of sound that’s impossible to ignore.
Fully assembled and ready to use right out of the box — just connect your Bosch battery and unleash its power.
Key Features
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Five Metal Trumpets (Quintuple Setup) — tuned for depth, clarity & long-range projection.
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Bosch 18V Battery Compatible — 100 % cordless, no compressor or air tank required.
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140+ dB Output — professional-grade loudness with rich tonal layers.
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Wireless Remote (160 ft range) — trigger blasts instantly or use the onboard handle switch.
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All-Metal Construction — rugged, weather-resistant body built to perform.
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Thunderstrike Design — bold industrial styling that reflects its strength.
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Hand-Assembled & Tested — each unit precisely tuned and quality-checked before shipping.
Built for Power & Precision
The Thunderstrike Quintuple System combines Bosch reliability with handcrafted tuning to produce an unmatched sound signature.
Perfect for car shows, parades, sporting events, worksites, and emergency use — wherever maximum attention and durability are required.
No hoses. No tanks. No limits.
Just pure Bosch 18V battery power transformed into raw, controlled sound energy.
Bosch Thunderstrike 5-Trumpet Model — five horns, one unmistakable voice.
Built by hand. Tested for power. Ready to roar.
Disclaimer
This train air horn is a custom conversion built from a new Bosch power tool.
It is not manufactured, endorsed, or authorized by Bosch.
Every unit is individually assembled and inspected by HONKUP before shipment.