---
product_id: 40833982
title: "Mega 100-Watt Police Siren and Emergency Vehicle Siren System with Horn and PA Microphone"
brand: "speedtech lights"
price: "A$323"
currency: AUD
in_stock: true
reviews_count: 8
category: "Speed Tech Lights"
url: https://www.desertcart.com.au/products/40833982-mega-100-watt-police-siren-and-emergency-vehicle-siren-system
store_origin: AU
region: Australia
---

# 6 dynamic siren tones LED power indicators 100W thunderous output Mega 100-Watt Police Siren and Emergency Vehicle Siren System with Horn and PA Microphone

**Brand:** speedtech lights
**Price:** A$323
**Availability:** ✅ In Stock

## Summary

> 🚨 Own the moment with the Mega 100W Siren — be heard, be unstoppable!

## Quick Answers

- **What is this?** Mega 100-Watt Police Siren and Emergency Vehicle Siren System with Horn and PA Microphone by speedtech lights
- **How much does it cost?** A$323 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/40833982-mega-100-watt-police-siren-and-emergency-vehicle-siren-system)

## Best For

- speedtech lights enthusiasts

## Why This Product

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

## Key Features

- • **Crystal Clear PA Mic:** Durable microphone with clip mount ensures your voice cuts through noise
- • **Versatile Siren Modes:** Switch seamlessly between Wail, Mech, Yelp, Sting, Tool, and Hi-Lo tones
- • **Built to Last & Perform:** Robust black aluminum/polycarbonate housing with LED-lit buttons for reliable operation
- • **Intuitive Manual Control:** Ergonomic toggle for quick siren and horn activation on the fly
- • **Command Attention Instantly:** 100-watt siren blasts up to 110dB for unmatched presence

## Overview

The Mega 100-Watt Police Siren System delivers powerful 110dB sound with six distinct siren tones and a manual horn toggle. Featuring a rugged build, LED indicators, and a clear PA microphone, it’s designed for emergency responders and security pros who demand reliability and instant attention.

## Description

Buy Mega 100-Watt Police Siren and Emergency Vehicle Siren System with Horn and PA Microphone: Electrical - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Good Product - Purchased as a gift. Product is as advertised.
Review: GREAT UNIT SO FAR - *update after 2yrs usage* everything I stated below still holds true. Buttons haven’t worn at all* Only had it for about a week so eventually I’ll update. For now I’ll do a pros vs cons Pros: *PA is very clear *well built *Lightweight *Buttons are not super firm, they’re balanced well *Sirens sound very professional *Comes with STL LED flashlight *Install was VERY easy. “RED positive, BLACK negative, & both BROWN wires go to the speaker.” Cons: * wires could be longer and that’s my only con at the moment but it’s no big deal buying speaker wires in my opinion lol. Summary: it’s a great unit for the money and could go well for volunteer firefighters or personal police/security vehicles. I’m using this unit with the 100W Yhaavale flat speaker and it’s VERY loud. I’ll probably use the STL version in the future. I’ll leave a video below on the sounds. I hope that this helps anyone interested in the unit. Thank you STL!

## Features

- LOUD & POWERFUL - 100-watt siren system output
- MULTIPLE SIREN TONES - Wail, Mech, Yelp, Sting, Tool, Hi-Lo
- MANUAL SIREN & HORN - Manual toggle for siren and horn
- DURABLE MICROPHONE - Microphone and clip mount included
- LED INDICATOR - Buttons LED light up when powered on

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01BET7BXO |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #1,073,468 in Automotive ( See Top 100 in Automotive ) #1,036 in Horns & Accessories #21,973 in Electrical |
| Brand | SpeedTech Lights |
| Bulb Type | led |
| Customer Reviews | 4.5 4.5 out of 5 stars (50) |
| Date First Available | July 31, 2016 |
| Exterior | Black Aluminum / Polycarbonate |
| Is Discontinued By Manufacturer | No |
| Item Weight | 2.7 pounds |
| Item dimensions L x W x H | 5 x 6 x 1.5 inches |
| Item model number | S-MG100 |
| Manufacturer | SpeedTech Lights |
| Manufacturer Part Number | S-MGE100 |
| Model | Mega 100-Watt Police Siren and Emergency Vehicle Siren System with Horn and PA Microphone |
| Noise Level | 110 Decibels |
| Product Dimensions | 5 x 6 x 1.5 inches |
| Style | Modern |
| Wattage | 100 watts |

## Product Details

- **Brand:** SpeedTech Lights
- **Fit Type:** Universal Fit
- **Item dimensions L x W x H:** 5 x 6 x 1.5 inches
- **Material:** Aluminum
- **Voltage:** 12 Volts

## Images

![Mega 100-Watt Police Siren and Emergency Vehicle Siren System with Horn and PA Microphone - Image 1](https://m.media-amazon.com/images/I/515qBefmnLL.jpg)
![Mega 100-Watt Police Siren and Emergency Vehicle Siren System with Horn and PA Microphone - Image 2](https://m.media-amazon.com/images/I/51VqUHuN9WL.jpg)
![Mega 100-Watt Police Siren and Emergency Vehicle Siren System with Horn and PA Microphone - Image 3](https://m.media-amazon.com/images/I/61-gdkp1thL.jpg)
![Mega 100-Watt Police Siren and Emergency Vehicle Siren System with Horn and PA Microphone - Image 4](https://m.media-amazon.com/images/I/610Ubpcpj9L.jpg)
![Mega 100-Watt Police Siren and Emergency Vehicle Siren System with Horn and PA Microphone - Image 5](https://m.media-amazon.com/images/I/617kO1UhykL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good Product
*by L***N on July 19, 2025*

Purchased as a gift. Product is as advertised.

### ⭐⭐⭐⭐⭐ GREAT UNIT SO FAR
*by L***E on June 24, 2020*

*update after 2yrs usage* everything I stated below still holds true. Buttons haven’t worn at all* Only had it for about a week so eventually I’ll update. For now I’ll do a pros vs cons Pros: *PA is very clear *well built *Lightweight *Buttons are not super firm, they’re balanced well *Sirens sound very professional *Comes with STL LED flashlight *Install was VERY easy. “RED positive, BLACK negative, & both BROWN wires go to the speaker.” Cons: * wires could be longer and that’s my only con at the moment but it’s no big deal buying speaker wires in my opinion lol. Summary: it’s a great unit for the money and could go well for volunteer firefighters or personal police/security vehicles. I’m using this unit with the 100W Yhaavale flat speaker and it’s VERY loud. I’ll probably use the STL version in the future. I’ll leave a video below on the sounds. I hope that this helps anyone interested in the unit. Thank you STL!

### ⭐⭐⭐⭐⭐ better than expected.
*by T***. on May 31, 2021*

just to clear up, you get the box with the dual horn. the lower pictures had me wondering. siren projects well with a lamphus 100w speaker, not sure if different speakers will do better or worse. box is small enough to make for several mounting options, but not so small that you fumble trying to control it. buttons have a tactile press, as does the horn rocker. pa is loud and clear, excellent build quality, would definitely recommend.

## Frequently Bought Together

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-05*