---
product_id: 402434120
title: "HO-9 Horn, 330 Hz + 400 Hz, Superior/Bass Horn, Super Deep Bass, 112 DB, Pack of 2, Swirl Type, Compatible with Vehicle Inspections, Ground Harness Included"
brand: "piaa"
price: "VT26867"
currency: VUV
in_stock: true
url: https://www.desertcart.vu/products/402434120-ho-9-horn-330-hz-400-hz-superior-bass-horn
store_origin: VU
region: Vanuatu
---

# Pack of 2 112 dB Power 12V Compatibility HO-9 Horn, 330 Hz + 400 Hz, Superior/Bass Horn, Super Deep Bass, 112 DB, Pack of 2, Swirl Type, Compatible with Vehicle Inspections, Ground Harness Included

**Brand:** piaa
**Price:** VT26867
**Availability:** ✅ In Stock

## Summary

> 🎺 Sound That Turns Heads!

## Quick Answers

- **What is this?** HO-9 Horn, 330 Hz + 400 Hz, Superior/Bass Horn, Super Deep Bass, 112 DB, Pack of 2, Swirl Type, Compatible with Vehicle Inspections, Ground Harness Included by piaa
- **How much does it cost?** VT26867 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/402434120-ho-9-horn-330-hz-400-hz-superior-bass-horn)

## Best For

- piaa enthusiasts

## Why This Product

- Trusted piaa brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Unleash the Sound:** Experience a powerful 112 dB output that commands attention.
- • **Compact & Convenient:** Designed with a sleek package size of 7.1 x 3.9 x 9.1 inches for easy installation.
- • **Built for Performance:** Engineered for 12V vehicles, ensuring compatibility and reliability.
- • **Quality You Can Trust:** Proudly made in Japan, reflecting superior craftsmanship and durability.
- • **Dual Frequency Delight:** Enjoy the rich tones of 330 Hz and 400 Hz for a superior auditory experience.

## Overview

The PiaaHO-9 Horn is a high-performance dual-frequency horn designed for 12V vehicles, delivering an impressive 112 dB output at 330 Hz and 400 Hz. This pack of two horns is compact, lightweight, and includes a ground harness for easy installation, making it a perfect choice for vehicle inspections and enhancing your ride's auditory presence.

## Description

HO-9 Horn, 330 Hz + 400 Hz, Superior/Bass Horn, Super Deep Bass, 112 DB, Pack of 2, Swirl Type, Compatible with Vehicle Inspections, Ground Harness Included

## Features

- Specifications: For 12 V vehicles, 112 dB (330 Hz + 400 Hz), 2 terminal specifications
- Package Size: 7.1 x 3.9 x 9.1 inches (180.0 x 100.0 x 230.0 mm)
- Country of Origin: Japan
- Package weight: 0.53 kg

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | PIAA(ピア) |
| Brand | Piaa |
| Model | スポーツホーン |
| Package Dimensions | 21.4 x 17.4 x 9.1 cm; 535 g |
| Item model number | HO-9 |
| Manufacturer Part Number | HO-9 |
| Voltage | 12 Volts |
| Item Weight | 535 g |

## Product Details

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

## Images

![HO-9 Horn, 330 Hz + 400 Hz, Superior/Bass Horn, Super Deep Bass, 112 DB, Pack of 2, Swirl Type, Compatible with Vehicle Inspections, Ground Harness Included - Image 1](https://m.media-amazon.com/images/I/71lW-dy7e7L.jpg)

## Available Options

This product comes in different **Pattern, Style** options.

## Questions & Answers

**Q: Is this the same as piaa 85115, and if so why the different part number ho-9?**
A: This is Japanese version.
All instruction in Japanese.

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

**Q: do it come with the adapter wire ?**
A: 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.

**Q: will this work on motorcycle?**
A: No, this don't work on motorcycle.

## Frequently Bought Together

- PIAA [peer] sport horn 330 +400 HZ [number] HO-9
- uxcell 2Pcs Plastic Car Horn Speaker Adapter Wiring Harness Pigtail Socket for Toyota
- Car Horn Wiring Harness Pigtail Socke, 1 to 2 Horn Adapter Connector Y Type Horn Special Plug Wiring Kit Compatible with Toyota Car Truck Horn Plug and Play.

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**Shop now:** [https://www.desertcart.vu/products/402434120-ho-9-horn-330-hz-400-hz-superior-bass-horn](https://www.desertcart.vu/products/402434120-ho-9-horn-330-hz-400-hz-superior-bass-horn)

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-13*