{"product_id":"hella-hka-twin-trumpet-air-horn-kit-12v","title":"HELLA HKA Twin Trumpet Air Horn Kit, 12V","description":"\u003cp class=\"nvn-hero\"\u003eThe HELLA HKA twin trumpet air horn kit delivers a loud, dual-tone blast from two trumpets tuned to 780 and 840 Hertz. It runs on 12 volts and ships as a complete kit with compressor, relay, tubing, and mounting brackets.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eThe HELLA HKA twin trumpet air horn kit gives your boat or truck a loud, dual-tone blast that people actually hear over traffic and wind. Two trumpets, one tuned to 780 Hertz and the other to 840 Hertz, blend into that classic deep, layered note. It runs on a standard 12-volt system, so it wires into most rigs without any special hardware.\u003c\/p\u003e\n\u003cp\u003eThis is the complete kit. You get the twin trumpets, the compressor that drives them, the relay, the tubing, and the mounting brackets, so you're not hunting down extra parts after the box shows up. The trumpets are molded plastic with a painted red finish, which keeps the weight down and holds up to weather better than bare metal.\u003c\/p\u003e\n\u003cp\u003eMount the compressor somewhere dry and protected, run the tubing to the trumpets, wire the relay to your horn button, and you're set. It's a straightforward afternoon install for anyone comfortable with basic 12-volt wiring. Great upgrade for when the factory horn just isn't cutting it.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003eDual-tone output: 780 Hz low trumpet and 840 Hz high trumpet blend into a deep, layered blast\u003c\/li\u003e\n  \u003cli\u003e12-volt operation wires into standard automotive and marine electrical systems\u003c\/li\u003e\n  \u003cli\u003eComplete kit includes the compressor, relay, tubing, and mounting brackets\u003c\/li\u003e\n  \u003cli\u003ePainted red plastic trumpets shed weather and keep the weight down\u003c\/li\u003e\n  \u003cli\u003eTwin trumpet design puts out noticeably more volume than a single factory horn\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"nvn-trust\"\u003e\n  \u003ch2\u003eWhy Buy from NVN Marine\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eAuthorized HELLA reseller, full manufacturer warranty\u003c\/li\u003e\n    \u003cli\u003eNMEA member and ABYC certified, advice from real boat techs\u003c\/li\u003e\n    \u003cli\u003eSame-day shipping before 3 PM ET on in-stock items\u003c\/li\u003e\n    \u003cli\u003eNY headquarters and Fort Lauderdale flagship retail store\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"nvn-faq\"\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat's included in the HELLA HKA air horn kit?\u003c\/summary\u003e\n    \u003cp\u003eThe kit comes with two trumpets, the air compressor, a relay, tubing, and mounting brackets. Everything you need to wire it up is in the box.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat voltage does this horn run on?\u003c\/summary\u003e\n    \u003cp\u003eIt runs on a standard 12-volt system, so it fits most trucks and boats without any extra hardware.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat tones does it produce?\u003c\/summary\u003e\n    \u003cp\u003eTwo trumpets, one at 780 Hertz and one at 840 Hertz, that blend into a deep dual-tone note.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAre the trumpets metal or plastic?\u003c\/summary\u003e\n    \u003cp\u003eThey're molded plastic with a painted red finish, which keeps them light and helps them hold up to weather.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"nvn-specs\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003eTitle\u003c\/th\u003e\n\u003ctd\u003eHELLA HKA Twin Trumpet Air Horn Kit, 12V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHELLA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003e003001651\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e760687145585\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eLow Tone Frequency\u003c\/th\u003e\n\u003ctd\u003e780 Hertz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eHigh Tone Frequency\u003c\/th\u003e\n\u003ctd\u003e840 Hertz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eStyle\u003c\/th\u003e\n\u003ctd\u003eTrumpet\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eVoltage\u003c\/th\u003e\n\u003ctd\u003e12V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003ePainted\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eColor\u003c\/th\u003e\n\u003ctd\u003eRed\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003ePlastic\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eIncluded Components\u003c\/th\u003e\n\u003ctd\u003eCompressor, Relay, Tubing, Mounting Brackets\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What's included in the HELLA HKA air horn kit?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The kit comes with two trumpets, the air compressor, a relay, tubing, and mounting brackets. Everything you need to wire it up is in the box.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What voltage does this horn run on?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It runs on a standard 12-volt system, so it fits most trucks and boats without any extra hardware.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What tones does it produce?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Two trumpets, one at 780 Hertz and one at 840 Hertz, that blend into a deep dual-tone note.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Are the trumpets metal or plastic?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"They're molded plastic with a painted red finish, which keeps them light and helps them hold up to weather.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"HELLA","offers":[{"title":"Default Title","offer_id":45093625462877,"sku":"2011439","price":51.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_34dfb637-272d-467f-8170-8b307d2479d8.jpg?v=1790256747","url":"https:\/\/nvnmarine.com\/products\/hella-hka-twin-trumpet-air-horn-kit-12v","provider":"NVN Marine","version":"1.0","type":"link"}