Is this the same as piaa 85115, and if so why the different part number ho-9?

This is Japanese version. All instruction in Japanese.

What does piaa [peer] mean. peer suggests equal. is this a copy of the pia product?

PIAA is the name of a Japanese company specializing in automotive equipment. They make a variety of automative accessories including car horns: https://www.piaa.co.jp/category/english/e_4rin/e_horn/#400-500hz-sports-horn Don't know of any relationship to PIA as you stated in your question. I installed the horns on my Polaris Slingshot replacing the single horn that came with the vehicle. The sound is much louder and richer than the original one due to the dual horns set at different frequencies of 400Hz and 500Hz. Well-satisfied with the results. Hope this helps.

do it come with the adapter wire ?

They come with wires and connectors. I am not sure what you mean by adapters. You simply plug the existing wire from your auto onto one horn and use the accompanying wires to connect the second horn to the first. Then ground the second horn to complete the circuit. It is all very simple and easy.

will this work on motorcycle?

No, this don't work on motorcycle.

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

[pair] sport horn 330+400HZ [number] HO-9

Product ID: 402434120

Details

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

⚡12V universal fit

🎵Dual-tone 330 Hz + 400 Hz

🔊112 dB super loud

€ 115.98

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

Secure transaction

Description

🎯 Make your presence heard with the ultimate bass blast!

DUAL TONE DEEP BASS HARMONY - Experience a rich blend of 330 Hz and 400 Hz frequencies for a uniquely powerful sound.
UNIVERSAL 12 V COMPATIBILITY - Seamlessly fits most passenger vehicles without hassle.
SLEEK SWIRL DESIGN FROM JAPAN - Elevate your ride’s style with a premium, compact horn crafted for performance and aesthetics.
COMPLETE INSTALLATION KIT INCLUDED - Earth harness included for quick, professional-grade setup.
COMMAND ATTENTION WITH 112 D B POWER - Cut through city noise with a horn that demands respect.

The PIAA HO-9 Horn delivers a commanding 112 dB sound output with a unique dual-tone frequency of 330 Hz and 400 Hz, engineered for deep bass impact. Designed for universal 12V vehicle compatibility, it includes an earth harness for easy installation. Compact and stylish with a swirl design, this Japanese-made horn is perfect for drivers who want to stand out audibly and visually while meeting vehicle inspection standards.

Specifications

ASIN	B004VJMYD2
Automotive Fit Type	Universal Fit
Best Sellers Rank	#13,732 in Automotive ( See Top 100 in Automotive ) #14 in Musical Horns
Brand	Piaa
Brand Name	Piaa
Color	Black
Colour	Black
Compatible with Vehicle Type	Passenger Car
Customer Reviews	4.4 out of 5 stars 934 Reviews
Fit Type	Universal Fit
Fit type	Universal Fit
Included Components	Earth Harness
Item Type Name	car horn
Manufacturer	PIAA(ピア)
Manufacturer Part Number	HO-9
Material	Plastic
Material Type	Plastic
Model Number	HO-9
Noise Level	112 Decibels
Number of Items	2
OEM Equivalent Part Number	HO-9
Style	Super Bass / Swirl
Style Name	Super Bass / Swirl
Voltage	12 Volts

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

€ 115.98

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

View all Trustpilot reviews