"this is a single horn with 2 tones" by klute on november 23, 2015 could someone please remove this confusing misinformation. it is 2 horns, right?

No, there is 2 horns in the box. One horn is 400 Hz, and the other is a 500 Hz. Every car should have a set of horns like these! The horns will definitely wake up those people who think it's ok to text, shave, read the newspaper, and put on makeup while trying to drive down the road.

Can I replace my alarm siren with this?

You might be able to. There may also be a way to add a relay of sorts to sound the car horn instead of the alarm horn. Many cars utilize the car horn for the alarm signal from factory.

Will this fit my 2006 Harley wide glide ?

I installed this horn on my 2009 Ultra Classic. To much Vibration on the Harley. Horn worked great for a while. I replace with a Blazer Horn Low Tone from Auto Zone 125 decibles fit in place of stock horn under $20.

What do I need if my 1978 jeep has NO previous horn or wiring/relay that isn't included in the package?

I'd say google/youtube how to install a car horn from scratch. You may have to weed through the ones that simply replace the old one.

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PIAA 85110 115db 400HZ + 500HZ Sports Horn

PIAA 85110 115db 400HZ + 500HZ Sports Horn

Product ID: 296020465

Details

Brand
Piaa
Colour
Black
Fit Type
Universal Fit
Material
Plastic
Voltage
12 Volts

🎵Dual-tone 400Hz + 500Hz

🔊115 dB thunderous blast

⚙️Universal fit, plug & play

Description

🚨 Make noise, make moves — be heard before you’re seen!

SAFETY MEETS STYLE - Elevate your ride’s safety with a sleek, sporty horn that announces you with confidence.
SIGNATURE DUAL TONE SOUND - Unique 400Hz and 500Hz frequencies create a distinctive, attention-grabbing alert.
COMMAND ATTENTION INSTANTLY - 115 decibels of ear-catching power to make your presence impossible to ignore.
WEATHER RESISTANT DURABILITY - Built to withstand the elements with rugged, protective covers for year-round reliability.
EFFORTLESS UNIVERSAL INSTALLATION - Fits virtually any vehicle type—car, truck, UTV, or van—without hassle.

The PIAA 85110 Sports Horn delivers a powerful 115 dB dual-tone alert at 400Hz and 500Hz, engineered for universal fit across cars, trucks, UTVs, and vans. Lightweight and weather-resistant, it ensures your presence is noticed with style and safety, making it an essential upgrade for any vehicle.

Specifications

ASIN	B00067BWBI
Automotive Fit Type	Universal Fit
Best Sellers Rank	#411,356 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #1,198 in Car Horns
Brand Name	Piaa
Colour	Black
Compatible with Vehicle Type	Passenger Car, Truck, UTV, Van
Country of Origin	USA
Customer Reviews	4.4 4.4 out of 5 stars (389)
Fit Type	Universal Fit
Global Trade Identification Number	00722935851105
Item Type Name	115db 400HZ + 500HZ Sports Horn
Item Weight	1 Pounds
Manufacturer	VAAE7
Manufacturer Part Number	85110
Material Type	Plastic
Model	85110
Noise Level	115 Decibels
Number of Items	1
OEM Equivalent Part Number	85110
Style Name	Sports,Safety
UPC	722935851105 022935851106
Voltage	12 Volts
What Is In the Box	115db 400HZ + 500HZ Sports Horn

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