---
product_id: 314288036
title: "Fox 40 Electronic Whistle Black One Size K-REY-FXW121"
brand: "fox 40"
price: "2030623₫"
currency: VND
in_stock: true
reviews_count: 9
category: "Fox 40"
url: https://www.desertcart.vn/products/314288036-fox-40-electronic-whistle-black-one-size-k-rey-fxw121
store_origin: VN
region: Vietnam
---

# 3 directional tone options 125 dB piercing sound 9V battery included Fox 40 Electronic Whistle Black One Size K-REY-FXW121

**Brand:** fox 40
**Price:** 2030623₫
**Availability:** ✅ In Stock

## Summary

> 🔊 Command attention with every blow—be the voice that leads the pack!

## Quick Answers

- **What is this?** Fox 40 Electronic Whistle Black One Size K-REY-FXW121 by fox 40
- **How much does it cost?** 2030623₫ 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/314288036-fox-40-electronic-whistle-black-one-size-k-rey-fxw121)

## Best For

- fox 40 enthusiasts

## Why This Product

- Trusted fox 40 brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Ready Out of the Box:** Includes 9V lithium battery and detachable wrist strap for instant deployment.
- • **Compact & Lightweight:** Sleek black design at just 0.12g fits comfortably in your hand or gear.
- • **Unmatched Sonic Authority:** 125 dB sound cuts through any noise, ensuring you're heard loud and clear.
- • **Hygienic Multi-User Design:** Electronic button eliminates mouth contact—perfect for shared use without compromise.
- • **Precision Directional Alerts:** Three distinctive tones aimed exactly where you need them for maximum impact.

## Overview

The Fox 40 Electronic Whistle delivers a powerful 125 dB sound through an easy-press button, offering three directional tones for precise signaling. Designed for hygienic multi-user environments, it includes a detachable wrist strap and a 9V lithium battery, making it a reliable, lightweight, and ready-to-use safety essential for coaches, referees, and emergency responders.

## Description

Product Description The ideal hygienic solution for multiple users. The fox 40 electronic whistle has a button that provides a loud, clear and consistent sound. Three distinctive tones that can be aimed in specific directions. Sound power: 125 db and includes detachable wrist loop lanyard and 9-volt battery. Safety Warning Please read all product packaging literature and product labels before use.

Review: Great product - Use these on construction site for emergency situations only
Review: Consistent tone. - Consistent tone is great for ADHD & ASC kids. Great for play-as-you-ref while not having to exhale for whistle blowing. Sonically, tones are fine for an indoor sports hall.

## Features

- The Fox 40 electronic whistle features a button that provides a loud, clear and consistent sound
- The ideal hygienic solution for multiple users
- distinctive T that can be aligned in certain directions.
- Sound output: 125 dB
- Includes removable wrist strap and 9 volt battery.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08KH7S4D7 |
| Batteries | 1 9V batteries required. (included) |
| Battery Type | Lithium Metal |
| Colour | Black |
| Customer Reviews | 4.3 4.3 out of 5 stars (672) |
| Date First Available | 1 Oct. 2020 |
| Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. |
| Item Weight | 0.12 g |
| Item model number | K-REY-FXW121 |
| Material Type | Plastic |
| Product Dimensions | 11.43 x 3.56 x 23.11 cm; 0.12 g |
| Size | One Size |

## Images

![Fox 40 Electronic Whistle Black One Size K-REY-FXW121 - Image 1](https://m.media-amazon.com/images/I/519qteuMlDL.jpg)
![Fox 40 Electronic Whistle Black One Size K-REY-FXW121 - Image 2](https://m.media-amazon.com/images/I/712ar5y03KL.jpg)

## Questions & Answers

**Q: Will this mimic the sound of a a dox 40 classic? That is the specific sound I need.**
A: Yes, it has a few options for sound level

**Q: Is this really the 125 dB version? Customers are complaining that they are receiving the 100 dB version**
A: The correct dB is 100.  Fox 40 retested the whistles and 100 dB is the corrected level.

**Q: Es recargable?**
A: This one is not rechargeable.

**Q: Will this mimic the sound of a a fox 40 classic? That is the specific sound I need.**
A: The Fox Electronic does not mimic the sound  of the fox 40 classic.
here is a clip of the electronic with sound
https://www.youtube.com/watch?v=6PSjvXpd37M

and here is a link to the sound of the classic
https://static.wixstatic.com/mp3/fefe46_5c101fa4381c49878fbbbf19873a174c.mp3

Hope this helps
EWhistles

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product
*by S***N on 14 April 2024*

Use these on construction site for emergency situations only

### ⭐⭐⭐⭐⭐ Consistent tone.
*by A***R on 12 February 2022*

Consistent tone is great for ADHD & ASC kids. Great for play-as-you-ref while not having to exhale for whistle blowing. Sonically, tones are fine for an indoor sports hall.

### ⭐⭐⭐⭐⭐ It works
*by S***D on 11 November 2021*

It works

## Frequently Bought Together

- Fox 40Fox 40 Pearl Whistle with Wrist Lanyard Blue
- Fox 40 Classic Official Whistle with Break Away Lanyard (Black)
- Fox 40 Electronic Whistle -DS

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-02-14*