---
product_id: 334903198
title: "LAMPHUS SoundAlert 100W Emergency Police Siren Kit [120-130dB Compact Speaker] [2 x 16A Switch Control] [Hands-Free Air Horn] [PTT Mic] [Radio Rebroadcast] Warning Emergency PA System for Trucks Cars"
brand: "lamphus"
price: "17378791₫"
currency: VND
in_stock: true
reviews_count: 5
category: "Lamphus"
url: https://www.desertcart.vn/products/334903198-lamphus-soundalert-100w-emergency-police-siren-kit-120-130db-compact
store_origin: VN
region: Vietnam
---

# 2 x 16A switch control Radio rebroadcast feature 100W amplifier power LAMPHUS SoundAlert 100W Emergency Police Siren Kit [120-130dB Compact Speaker] [2 x 16A Switch Control] [Hands-Free Air Horn] [PTT Mic] [Radio Rebroadcast] Warning Emergency PA System for Trucks Cars

**Brand:** lamphus
**Price:** 17378791₫
**Availability:** ✅ In Stock

## Summary

> 🚨 Own the streets with sound that demands respect!

## Quick Answers

- **What is this?** LAMPHUS SoundAlert 100W Emergency Police Siren Kit [120-130dB Compact Speaker] [2 x 16A Switch Control] [Hands-Free Air Horn] [PTT Mic] [Radio Rebroadcast] Warning Emergency PA System for Trucks Cars by lamphus
- **How much does it cost?** 17378791₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/334903198-lamphus-soundalert-100w-emergency-police-siren-kit-120-130db-compact)

## Best For

- lamphus enthusiasts

## Why This Product

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

## Key Features

- • **Compact Yet Mighty:** Slim 3-inch profile fits discreetly on bumpers or grilles without sacrificing powerful sound output.
- • **Total System Control:** Dual 16A auxiliary switches empower you to customize your emergency setup effortlessly.
- • **Stay Connected Anywhere:** Radio rebroadcast streams your GMRS, CB, or HAM radio through the siren speaker for on-the-go updates.
- • **Safety-First Horn Override:** Integrated horn override lets you activate the air horn hands-free, keeping your focus on the road.
- • **Command Attention Instantly:** 100W amplifier delivers piercing 120-130dB sound that cuts through urban noise.

## Overview

The LAMPHUS SoundAlert 100W Emergency Police Siren Kit is a compact, high-decibel warning system designed for trucks and cars. Featuring a powerful 100W amplifier, dual 16A auxiliary switches for expanded control, hands-free horn override, and radio rebroadcast capabilities, it ensures you stay heard and informed in critical situations. Its slim design allows easy mounting without bulk, making it the ultimate auditory authority on the road.

## Description

International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

Review: Works amazing and sounds great and loud, so far so good after 2 years
Review: I just wanted a PA and a loud horn to get drivers' attention but all I could find is devices like this. The siren features are illegal where I live (can't even have them installed) so I had to open up the box and cut some wires to disable them so that only the horn and PA work. Also drove a screw through the selector switch in a way so that I could only select the Standby (PA) and Radio functions (which lets you play your stereo through the loudspeaker, full of unlimited potential if I would stop being lazy and get around to running the wires). The screw part through the switch was optional since I already physically disabled the sirens, but I'm not taking any chances with the local police. I was pleasantly surprised by the sturdiness of the microphone; it looks like cheap plastic in the pics but feels very solid and sturdy in the hand. I didn't like the orange bits, though, so I painted them black with a marker. Unfortunately, I just can't fully recommend this product due to how quiet it is, even though I purchased the loudest version they sold. At max volume, the horn is attention-getting but it's no train horn, being just barely louder than my car's own horn (though if I hit both horns at the same time it's decently loud). The PA is MUCH quieter, however, like half as loud (you can hear this in other customers' review videos). You can just BARELY be heard at low speeds if you shout into the mic with your lips practically touching it. Forget about being heard while moving at decent speeds on the streets and highways. Kinda defeats the entire point of the PA, so at this point the box is mostly just an overpriced horn for me. Also feel like I should mention that the mount makes the box stick out a bit too much, forcing me to drill holes into the unit to make it sit more flush. Was easy enough to do since this box is not hard at all to disassemble (which is how I was able to disable the sirens so easily). In conclusion. I wish I could recommend this unit, but it's just not loud enough, especially at the price point and for what I intended on using it for.

## Features

- FORCEFUL - On crowded streets, where flashing emergency lights are not always obvious, the SoundAlert siren always gets noticed. Equipped with a 100W amplifier; wail, yelp, and hi-low tones; and an electronic air horn, this unit commands attention.
- MORE CONTROL - Other systems give you the basics, our's gives you the best. With two 16 amp, on/off auxiliary switches, this unit is more than just an authoritative auditory warning device, it's the backbone of your entire emergency warning system.
- HORN OVERRIDE - Finally, a siren system that focuses on your safety. Thanks to the integrated horn override function that activates your air horn with your stock horn button, you can keep your eyes on the road, and your mind on the task at hand.
- RADIO REBROADCAST - Stay informed, even when out of your vehicle. The helpful radio rebroadcast feature takes input from any other radio and routes it through your siren's loudspeaker so you can hear your GMRS, CB, or HAM radio wherever you are.
- COMPACT POWER - At less than 3" thick, this compact siren speaker easily fits on your bumper or behind your grille, and with its impressive 120 - 130 dB rating, it's just as powerful as the larger bullhorn speakers.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08B392MCD |
| Audio input | Microphone |
| Best Sellers Rank | 150,826 in Automotive ( See Top 100 in Automotive ) 1,167 in Car Horns |
| Connector type | Aux |
| Guaranteed software updates until | unknown |
| Item model number | SASN01 Rev.1-SASP04 |
| Manufacturer | LAMPHUS |
| Material | Plastic, Rubber |
| Mounting type | Surface Mount |
| Noise level | 130 Decibels |
| Number of channels | 1 |
| Power source | 12V DC |
| Product Dimensions | 28.91 x 21.29 x 17.48 cm; 4.91 kg |
| UPC | 816159026804 |

## Product Details

- **Brand:** LAMPHUS
- **Colour:** Compact Speaker (120-130dB)
- **Compatible devices:** Vehicles with 12V power source, potentially including devices with app control capability
- **Connectivity technology:** Wired
- **Item dimensions L x W x H:** 28.9 x 21.3 x 17.5 centimetres

## Images

![LAMPHUS SoundAlert 100W Emergency Police Siren Kit [120-130dB Compact Speaker] [2 x 16A Switch Control] [Hands-Free Air Horn] [PTT Mic] [Radio Rebroadcast] Warning Emergency PA System for Trucks Cars - Image 1](https://m.media-amazon.com/images/I/81BLLgLKUnL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Does it have the option to connect the siren to the vehiacle horn?**
A: Yes, it has a wire coming from the controller that attaches to the horn relay. there is a switch on the controller that if set to siren and you blow the car horn the siren will sound instead.

**Q: Is the siren speaker waterproof?**
A: The speaker is, but not the siren unit.

**Q: It keeps saying "hands free". Where is the part that doesn't require your hands??**
A: You can wire the siren box in-line between the horn button on your steering wheel and the horn relay of your vehicle to activate the horn function on the siren unit using the horn button on your steering wheel.  The hands free horn activation refers to not needing to take your hands off of the steering wheel to activate the siren horn.  Hope this helps.

**Q: how can an additional mic be added?**
A: The Unit has 12v running through each wire going to the radio. Keep that in mind if drinking around with it. Burnt out two amps trying to add some features

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by P***5 on 14 January 2026*

Works amazing and sounds great and loud, so far so good after 2 years

### ⭐⭐ Review
*by P***K on 10 March 2022*

I just wanted a PA and a loud horn to get drivers' attention but all I could find is devices like this. The siren features are illegal where I live (can't even have them installed) so I had to open up the box and cut some wires to disable them so that only the horn and PA work. Also drove a screw through the selector switch in a way so that I could only select the Standby (PA) and Radio functions (which lets you play your stereo through the loudspeaker, full of unlimited potential if I would stop being lazy and get around to running the wires). The screw part through the switch was optional since I already physically disabled the sirens, but I'm not taking any chances with the local police. I was pleasantly surprised by the sturdiness of the microphone; it looks like cheap plastic in the pics but feels very solid and sturdy in the hand. I didn't like the orange bits, though, so I painted them black with a marker. Unfortunately, I just can't fully recommend this product due to how quiet it is, even though I purchased the loudest version they sold. At max volume, the horn is attention-getting but it's no train horn, being just barely louder than my car's own horn (though if I hit both horns at the same time it's decently loud). The PA is MUCH quieter, however, like half as loud (you can hear this in other customers' review videos). You can just BARELY be heard at low speeds if you shout into the mic with your lips practically touching it. Forget about being heard while moving at decent speeds on the streets and highways. Kinda defeats the entire point of the PA, so at this point the box is mostly just an overpriced horn for me. Also feel like I should mention that the mount makes the box stick out a bit too much, forcing me to drill holes into the unit to make it sit more flush. Was easy enough to do since this box is not hard at all to disassemble (which is how I was able to disable the sirens so easily). In conclusion. I wish I could recommend this unit, but it's just not loud enough, especially at the price point and for what I intended on using it for.

### ⭐⭐ Review
*by S***N on 16 July 2021*

September 1st 2022 update: After install and usage. I can say this product is average to below average. (This unit was installed at a fuse block constant 12v for 7 months and at a battery terminal and chassis ground for the remaining 8 months.) • There are times when the full volume does not function correctly. And is intermittent. • Under sudden acceleration, unit loses power or surges (either or) and discharges the siren feature randomly. • At a stop while idling in gear, the siren feature will also discharge suddenly and expose the vehicle’s position. • one of the wires attached to the potentiometer broke (no photo) and I re soldered and heat shrunk correctly all connections. •Speaker mount pinches the green wires against the speaker and shorts them out. I had to drill a hole for them the correct way. •other various fit and finish issues that aren’t worth mentioning. Overall I cannot and will not recommend this unit. It would be better to spend the extra money for a good unit. This is at most a play thing and gimmick. ——————————————————————— So far product looks great. Arrived in good shape. All knobs, buttons and physical functions work and are very tactile. The selection knob on the front of the unit doesn’t quite line up with the options (ie the yelp function). My only gripe is the dejacket on the green wire pair for the speaker unit. A few copper strands were cut on one and the other is frayed. I’m go’na have to cut and lose some length and tin it properly. I would’ve preferred them not pre-dejacketed. Instructions are clear and simple for anyone to do an install. There should be no issue on that end. Note, instructions are only in English. Will update review after install.

## Frequently Bought Together

- SoundAlert 12V 100W Police Siren PA System Kit [120-130dB Compact Speaker] [2 x 16A Aux Switch] [Hands-Free Air Horn] [PTT Mic] [Radio Rebroadcast] Warning Emergency Siren for Vehicle Tow Truck Van RV
- SpeedTech Lights Raptor-X TIR Upper Windshield Interior Split LED Strobe Visor Light Bar Emergency Lights for Vehicles and Police with Cigarette Lighter Plug Controller - Amber/Clear
- 4pc SnakeEye III Amber White Clear LED Hideaway Strobe Light [SAE Class 1] 12V 1 Inch Round Waterproof Wig Wag Emergency Flashing Hide Away Fire Police Light Bulb For Service Work Truck Vehicle Car

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.vn/products/334903198-lamphus-soundalert-100w-emergency-police-siren-kit-120-130db-compact](https://www.desertcart.vn/products/334903198-lamphus-soundalert-100w-emergency-police-siren-kit-120-130db-compact)

---

*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-03-21*