---
product_id: 385488159
title: "50 Watt Professional Bluetooth Megaphone Bullhorn Speaker with Rechargeable Battery & Portable Strap - Siren and Recording - USB/SD/AUX Input - for Police, Cheerleading, Outdoor"
brand: "mgrolx"
price: "฿8635"
currency: THB
in_stock: true
reviews_count: 13
category: "Mgrolx"
url: https://www.desertcart.co.th/products/385488159-50-watt-professional-bluetooth-megaphone-bullhorn-speaker-with-rechargeable-battery
store_origin: TH
region: Thailand
---

# Bluetooth/USB/SD/AUX multi-input 50W peak power output Rechargeable lithium battery + 8xC backup 50 Watt Professional Bluetooth Megaphone Bullhorn Speaker with Rechargeable Battery & Portable Strap - Siren and Recording - USB/SD/AUX Input - for Police, Cheerleading, Outdoor

**Brand:** mgrolx
**Price:** ฿8635
**Availability:** ✅ In Stock

## Summary

> 📢 Own the crowd, wherever you go!

## Quick Answers

- **What is this?** 50 Watt Professional Bluetooth Megaphone Bullhorn Speaker with Rechargeable Battery & Portable Strap - Siren and Recording - USB/SD/AUX Input - for Police, Cheerleading, Outdoor by mgrolx
- **How much does it cost?** ฿8635 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/385488159-50-watt-professional-bluetooth-megaphone-bullhorn-speaker-with-rechargeable-battery)

## Best For

- mgrolx enthusiasts

## Why This Product

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

## Key Features

- • **Ergonomic & Portable:** Adjustable strap and lightweight design keep you hands-free and ready for any event.
- • **Dual Power Flexibility:** Rechargeable battery for endurance plus optional 8xC batteries for extended use.
- • **Unmatched 50W Loudness:** Command attention up to 1500 yards with crystal-clear projection.
- • **Versatile Audio Inputs:** Seamlessly switch between Bluetooth, USB, SD card, and AUX for your playlist or announcements.
- • **Built-in Siren & Recording:** Instantly activate siren or whistle sounds and record up to 260 seconds for on-the-go messaging.

## Overview

The MGROLX 50 Watt Professional Bluetooth Megaphone is a powerhouse audio tool designed for outdoor and group events. Featuring a robust 50W output with a 1500-yard range, it supports multiple audio inputs including Bluetooth, USB, SD, and AUX. Its rechargeable lithium battery ensures long-lasting use, complemented by an option for 8xC batteries for backup. Additional features include a built-in siren, whistle, and 260-second recording capability, all housed in a portable design with an adjustable strap for easy carrying.

## Description

Product description MGROLX PROFESSIONAL BLUETOOTH MEGAPHONE SPEASKER Detachable Microphone The microphone integrates sound amplification, siren, recording, music and other functions, which adds interest on the basis of practicality. The detachable design also eliminates the need for you to have this huge professional loudspeaker at all times. Speak Mode: The powerful Megaphone can provide up to 50W sound, which can be transmitted to 1200 meters away. Music Mode (SIREN and WHISTLE): this mode integrates two sounds under one button. When you press and hold the button, it will sound an alarm far higher than the sound volume of shouting mode; When you press and release the button immediately, it will send out a crisp and rapid whistle, which is suitable for basketball, football, bowling and other sports or military training. Recording Mode: This megahorn supports up to 260s recording. Just Enjoy It! BLUETOOTH MP3 PlAYER The pro megaphone has the ability to read a variety of mobile storage devices, which enables it to act as a temporary music playback equipment. You can even use mobile phone to search and connect the megaphone through BT mode （BLUETOOTH MODE) You can insert the USB/SD Card/MMC Card with your favorite songs into the interface of the megaphone speaker，which can read and play the audio in the corresponding device. Clear and high-power sound meet all your needs for a loudspeaker with music playback function. Built In Lithium Battery The loudspeaker's lithium battery just take two- three hours to fully charge and It lasts for at least 8 hours. It can also work for 8x(C) battery (not included) or connect the car with the AUX cable (not included) . Quick Speak Mode When you encounter an emergency, just press the trigger at the handle, which allows you to shout directly to the other party without turning on the detachable microphone switch. This concise and practical design can make this megaphone to adapt to all kinds of emergency environment, such as police woking, fire rescue and evacuation. Innovative Circuit Design Different from other megaphone speaker, the MGROLX MEGAPHONE has been optimized in the internal circuit design to reduce redundant lines, reduce the energy consumption of the product, make the sound louder at the same power, and the design greatly reduces the failure rate. In a word, louder and more durable. Precautions Do not aim the loudspeaker directly at people's ears to avoid hearing damage If you do not use the loudspeaker for a long time, keep the loudspeaker and the battery separately. Stay away from water

Review: A solid megaphone for the price and rechargeable! - Why did you pick this product vs others?: This is my first mega phone and it’s been great and useful. Battery life is pretty good and it’s been awesome for work. Battery life: I’ve only had to charge it once since I’ve had it in about year of light usage. Functionality: The Bluetooth and sd card option is awesome. Value for money: For the price it’s great value, not as high quality as far as materials but it’s still working for me. Sound quality: Solid quality and very loud. Durability: This is where I wish it was more harder/sturdy plastic but it’s been working so far under rough work conditions.
Review: Great Volume and Clarity - This is needed to use out of my upstairs loft's window (without being seen), to initially, politely ask the out-of-control, homeless, substance abusers screaming and fighting at all hours in the park across from my loft in Portland, Oregon, to quiet down. The volume and clarity of the megaphone is excellent, but my request is not always met.

## Features

- Powerful And Multipurpose:MGROLX PRO MEGAPHONE can provide up to 50W and 1500 yard sound which is specially designed for group and outdoor activities, such as sports activities, political demonstrations, social management and cheerleading activities. In order to be easy to carry, we also equipped it with adjustable straps.
- Recording And Siren/Whistle：This megaphone speaker supports recording for long to 260s. It contains two popular music siren and whistle . When you long press the “music button” for 2 seconds, it will play siren. When you short press , it will emit a bright whistle.
- Two Power Modes:This megaphone bullhorn built-in rechargeable lithium battery, which can realize long-term endurance after one charge. In addition, it also supports 8xC battery（not include）. If you need to use it for a long time and worry that the lithium battery life is not enough, you can take 8xc battery in case of need.
- Multiple Input Modes: This bullhorn megaphone supports BLUETOOTH/USB/SD/MMD input. Put your favorite songs into the above four drivers and insert them into the card reader. With huge power and excellent sound quality, it can act as a high-quality music player. And this bullhorn can connect with your phone playing music or sound.
- Innovative Circuit Design: The megaphone adopts modern circuit design and simplifies the internal circuit structure, reduces meaningless power loss, improves the output power and endurance of the bullhorn as a whole, and reduces the failure rate, which means louder and more possibilities.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09D91VRGB |
| Audio Input | Bluetooth, USB, SD, Aux |
| Best Sellers Rank | #30,260 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #12 in Coach & Referee Megaphones |
| Brand | MGROLX |
| Color | Black |
| Compatible Devices | Smartphone |
| Connectivity Technology | Bluetooth |
| Connector Type | Aux |
| Customer Reviews | 4.4 out of 5 stars 499 Reviews |
| Enclosure Material | Metal, Plastic |
| Item Weight | 1.42 Kilograms |
| Manufacturer | Sound Center |
| Mfr Part Number | ER-66BTUC |
| Model Number | ER-66BTUC |
| Mounting Type | Portable |
| Number of Channels | 1 |
| Output Wattage | 50 Watts |
| Power Source | Battery Powered |

## Product Details

- **Brand:** MGROLX
- **Color:** Black
- **Compatible Devices:** Smartphone
- **Connectivity Technology:** Bluetooth
- **Mounting Type:** Portable

## Images

![50 Watt Professional Bluetooth Megaphone Bullhorn Speaker with Rechargeable Battery & Portable Strap - Siren and Recording - USB/SD/AUX Input - for Police, Cheerleading, Outdoor - Image 1](https://m.media-amazon.com/images/I/61-EqzYu7rL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ A solid megaphone for the price and rechargeable!
*by F***G on July 3, 2025*

Why did you pick this product vs others?: This is my first mega phone and it’s been great and useful. Battery life is pretty good and it’s been awesome for work. Battery life: I’ve only had to charge it once since I’ve had it in about year of light usage. Functionality: The Bluetooth and sd card option is awesome. Value for money: For the price it’s great value, not as high quality as far as materials but it’s still working for me. Sound quality: Solid quality and very loud. Durability: This is where I wish it was more harder/sturdy plastic but it’s been working so far under rough work conditions.

### ⭐⭐⭐⭐⭐ Great Volume and Clarity
*by N***V on January 17, 2026*

This is needed to use out of my upstairs loft's window (without being seen), to initially, politely ask the out-of-control, homeless, substance abusers screaming and fighting at all hours in the park across from my loft in Portland, Oregon, to quiet down. The volume and clarity of the megaphone is excellent, but my request is not always met.

### ⭐⭐⭐⭐⭐ This is definitely sn excellent blue light special in aisle 3.
*by M***N on November 4, 2025*

Very well made,, including battery charge-pack. Works well and easy to use.

## Frequently Bought Together

- MGROLX 50 Watt Professional Bluetooth Megaphone Bullhorn Speaker with Rechargeable Battery & Portable Strap - Siren and Recording - USB/SD/AUX Input - for Police, Cheerleading, Outdoor
- Technical Pro Rechargeable Megaphone Battery - Portable Compatible with Most Megaphones Which Use C Batteries Compatible Models MPH75, MPH50USB, Pyle PMP52BT PMP53IN PMP50 PMP52BT

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-06-12*