Controllers

ROMEO control boxes and digital modules that turn any 6 trumpet air horn into a musical horn. Plug and play, 20 melodies, 12V and 24V.

What a control box does

A control box tells each trumpet when to sound, so your horn can play melodies. ROMEO modules have an LED numeric screen to show which melody is selected.

• ROMEO M-620 Control Box V1.0: 20 melodies for any 6 trumpet air horn.
• ROMEO Jingle Bell Digital Module V3.0: 20 melodies, including Christmas tunes.

Need trumpets too? See complete musical air horns.

Not sure which horn fits your vehicle? Read our air horn FAQ and installation guide, or message us on WhatsApp. Horn rules are different in every country, so check your local road laws before you fit a new horn.

Road-use restrictions and responsible sound use

Before buying or fitting a horn, check the rules for your country, vehicle class and intended use with the local road authority. Musical, multi-tone, train-style or high-output horns may be restricted. Compatibility with a vehicle does not establish road approval. In the UAE, official guidance restricts horn use within city limits to emergency situations. Do not use a horn to demand priority, clear traffic, celebrate, intimidate or startle people or animals. Follow noise restrictions and keep testing away from bystanders.

Safe installation and testing

Use a qualified vehicle electrician or air-system installer if unsure. Match the horn to the confirmed vehicle voltage and follow the supplied horn and vehicle instructions. Isolate electrical power as directed by the vehicle manufacturer before wiring. Use the specified fuse, relay and cable size; do not guess ratings. Secure the mounting and route wiring and air lines away from heat and moving parts. For air horns, confirm the required pressure and fittings, depressurize before disconnecting lines, and do not modify safety-critical braking systems. Keep people clear of the horn outlet and use appropriate hearing protection during testing. Keep the vehicle’s required warning horn operational.

Sources: UAE road-safety guidance. For installation support, contact Super Air Horns. This is general guidance, not model-specific fitting instructions or confirmation of road legality.