Bass and treble. 【Perfect Air Horn】Made of high-quality stainless steel 304 non-magnetic grade to ensure the durability and service life of the car horn. It can be used and work under various conditions.
eBay
12V Car Horn 60DB Car Trumpet Loudspeaker Snail Air Horn Car Speaker Sound Signal Waterproof Air Motorcycle Horns Loud Alarm Kit
Aliexpress UK
Very Loud Twin Tone 135db Sound. 1x Long Trumpet Horn. 1x Short Trumpet Horn. 12V Dual Air Horn Set Kit. Quality Powerful Durable Air Horn Kit. 12 Volt Compressor. 2 TONE : 780 / 840Hz. Features 2 different dual trumpets for high or low tones.
eBay
4 Trumpets Air Compressor Horn 150DB 12V Super Loud Universal Fit for Cars Trucks Boats Trains new
Aliexpress UK
[Easy Installation] Our trumpet speaker kit is very easy to install. [Super Loud] The air compressor and larger coil can make stronger air pressure, which makes the dual horn produce louder and clearer sound.
eBay
LOUD DUAL TRUMPET MARINE GRADE / BOAT STAINLESS STEEL AIR HORN 12V. Horn Type: Electric. Low & High Tone. Engineered for exterior use in almost any weather condition including fresh or salt water. 1X speaker (double tube).
eBay
Bass and treble. 【Perfect Air Horn】Made of high-quality stainless steel 304 non-magnetic grade to ensure the durability and service life of the car horn. It can be used and work under various conditions.
eBay
Horn Type: Electric. Low & High Tone. Engineered for exterior use in almost any weather condition including fresh or salt water. 1X speaker (double tube). Otherwise deal is final. We will be happy to resolve any issues you may have in a cordial and friendly manner.
eBay
DB Output: 600DB. 1 x Dual Trumpet Air Horn. Short Trumpet Length: 22.2cm. Long Trumpet Length: 28.5cm. Easy to install. The horn kit includes basic mounting hardware. This air horn needs an air source which is not including.
eBay
DB Output : 600DB. GOOD PERFORMANCE: With 6 00 dB sound level, this super loud air horn speaker has stable performance and higher work efficiency. UPDATED SOUND LEVEL: Stronger air pressure can be made of upgraded air compressor and larger coil, which can prompt the horn emit a louder and clearer sound.
eBay