---
product_id: 15620204
title: "Mini Hidden Spy Earphone Wireless Earpiece Headset Microphone Detection"
brand: "coomax"
price: "$2486"
currency: MXN
in_stock: true
reviews_count: 11
category: "Coomax"
url: https://www.desertcart.mx/products/15620204-mini-hidden-spy-earphone-wireless-earpiece-headset-microphone-detection
store_origin: MX
region: Mexico
---

# Ultra-mini 5x7x10mm stealth fit Magnetic RF wireless induction 3-5h battery life SR416SW Mini Hidden Spy Earphone Wireless Earpiece Headset Microphone Detection

**Brand:** coomax
**Price:** $2486
**Availability:** ✅ In Stock

## Summary

> 🎯 Stay connected, stay invisible — the ultimate stealth earpiece for power pros.

## Quick Answers

- **What is this?** Mini Hidden Spy Earphone Wireless Earpiece Headset Microphone Detection by coomax
- **How much does it cost?** $2486 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/15620204-mini-hidden-spy-earphone-wireless-earpiece-headset-microphone-detection)

## Best For

- coomax enthusiasts

## Why This Product

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

## Key Features

- • **Long-Lasting Power:** Reliable 3-5 hours of continuous use on a single SR416SW battery—stay connected through your busiest meetings.
- • **Crystal Clear Voice Control:** Built-in microphone with 1-button call control ensures hands-free, clear conversations without fumbling.
- • **Wear-Anywhere Inductive Loop:** Neck-worn loopset transmits audio wirelessly via electromagnetic induction—perfect for discreet professional settings.
- • **Universal Device Compatibility:** Works seamlessly with any 3.5mm jack device including iPhones (with adapter), Androids, tablets & more.
- • **Invisible Communication Mastery:** Discreet in-ear design fits deep in ear canal for covert calls and prompts.

## Overview

The COOMAX Mini Hidden Spy Earphone is a micro-miniature wireless inductive receiver designed for covert communication. Compatible with all devices featuring a 3.5mm audio jack, it delivers clear voice transmission via electromagnetic induction. With a compact anatomical design (5x7x10mm), 110dB sensitivity, and 3-5 hours battery life on a single SR416SW battery, it’s ideal for professionals needing discreet, hands-free communication in meetings, presentations, or exams. Note: Avoid interference by keeping away from electrical equipment.

## Description

Mini wireless earpiece is a micro-mini wireless inductive receiver that transforms audio signal through electromagnetic induction. These products make covert communication possible when it is inconvenient to expose earpieces. You can communicate with others freely once a network exists when you use a mobile phone. It is widely used in many situations. Such as speech prompts, exam prompts,etc. How to use 1.Open the battery door of earpieces and install the battery. Put the earpiece into ear canal and the slight sound of current indicate working order. 2.Put the inductive loop around your neck and connect the inductive loop to the drive equipments (mobile phone, radio) which are attached to or beneath users clothing. Note: 1. To avoid possible noise interference when using this device, Keep away from electrical equipment including personal computer consoles, speakers, televisions, refrigerators, etc. 2. Limited by the working principle of RF wireless, there will be a slight noise of current when the earphone is working, it is not recommended to use it to listen to music Specification Size : 5x7x10mm Shape : anatomical shape Receiver type : magnetic/analogue Maximmum volume : 110dB Battery : sr416sw/337 Battery Life : 3-5h Net Weight : 0.8g Package Content 1x Earpiece 1x Loopset 1x Battery - 337 SR416SW

Review: Bad reviews remind me of the "story" of when monkey's handle delicate stuff - Lovely - One of the MOST successful hidden ear pieces ever! USE: It goes all the near the ear drum, yet easy to remove holding it's tail VISIBILITY: it is completely hidden MUSIC: the sound quality is NOT meant for playing Music but for human voice which is clear enough CONTROL: the volume is controlled by phone volume controls EASY OF USE: easily plugs in the headphone jack just like a regular headphone BLUETOOTH: Are you kidding me? This is a typical phone headphone jack compatible, not a Bluetooth CONCEAL CABLE: the thick cream color cable is to be worn around the neck UNDER THE SHIRT and the ear phone ONLY works when it is in the middle of the think cream cable, it has to be in the frequency to work EAR BURSTING VOLUME?: the volume is relatively mild to high if you place it correctly & deep enough with it's tiny speaker opening towards the ear drum DOES IT GET TOO HOT: Again, are you kidding me? It's a 1.5 DC Volt, can NOT be more harmless, yes it does get slightly warm but you will NOT even feel it, I never did feel it, may be if you were to take a infrared heater lol ENVIRONMENT: clear enough to be used in slightly noisy environments like debates, classrooms etc, but, the more silent the better MICROPHONE SENSITIVITY: the mic is sensitive enough, just make sure to NOT rub it under your shirt - sit down, don't move too much, the fabric can rub over the mic via movements and the other person on the phone may not hear you well, so I keep the mic exposed but remainder cable in - works great for me... It also worked great when it was under the shirt, I wore a black shirt. Even if you keep the pic exposed there is NO physical connection like a wire between your ear and the mic - this is a HUGE advantage. Try wearing a thin shirt and dark color shirt out of common sense, do NOT hear jacket or heavy cotton shirt and expect the sound to pass thru heavy blankets. BUT THE BAD REIVEWS: Well, it is a delicate device, if you insert the battery the wrong way and press it, it WILL break buddy, if you pull the battery door tooo hard it will break, it is made of plastic and elastic!! If you are going to handle it appropriately it will NOT break HOW LONG HAVE I HAD IT?: At least 4 to 6 months I guess, I have even bought extra batteries for it, already drained one battery and the volume had gotten very low, I use it for 15 mintues to 1 hour at a time, sometimes just for about 5 minutes depending on that "Video" conference and I need help delivering presentations or when I need to go to a client meeting with my manager delivering current market statics in my head literally! It fits in your ear canal. BUT, THE SO MANY BAD REIVEWS: That is the exact reason I am writing this detailed review, just think how delicate you have to handle small components like delicately handling quarts watch minute hand, hour hand, seconds hand then you will be able to understand the plastic built is pretty strong considering it's size and yes there are small components inside so just be careful while inserting and removing battery, take care of the positive side and the negative side of the battery.. I will buy this again!! It lasted me so many months!
Review: I took a gamble but lost. Perhaps you'll have better luck. - I really wanted this to work out. This is something I've been looking for and it seemed perfect. After reading the reviews, I felt I had a 50-50 chance. Most people either loved it or had absolutely no success with this item. I fall into the ladder group. First time I tried it, and inserted the battery correctly, there was a hum in my ear, but I could never get any audio. No music, no phone calls nothing. I did everything I was supposed to do and wore the wire against my skin. I performed my due diligence by opening the other battery, because two batteries come with this unit, and inserted it into the earpiece the correct way, and I didn't even hear a hum. It was completely silent. Perhaps I received a faulty unit. Either way, it didn't work for me and I now have to find an alternative so if there are any suggestions out there, please let me know. Again I really wanted this to work, but I had zero success with it.

## Features

- Make the covert communication possible when it is inconvenient to expose earpieces.
- Support phone call, FM radio, MP3 player, etc
- Compatible with Apple iPhones, Android phones, tablets, Kindle, eReaders, and any portable devices with a standard 3.5 mm jack. (Apple iPhones needs lightning to audio adaptor)
- Microphone with 1-Button call for clear calls and smartphone control
- Note: To avoid possible noise interference when using this device, Keep away from electrical equipment including personal computer consoles, speakers, televisions, refrigerators, etc.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00ZX29CUE |
| Age Range (Description) | Adult |
| Audio Driver Type | Dynamic Driver |
| Batteries | 1 Product Specific batteries required. |
| Battery Life | 3 Hours |
| Best Sellers Rank | #29,291 in Electronics ( See Top 100 in Electronics ) #1,708 in Earbud & In-Ear Headphones |
| Cable Feature | Detachable |
| Charging Time | 5 Hours |
| Compatible Devices | Apple iPhones, Android phones, tablets, Kindle, eReaders, portable devices with a standard 3.5 mm jack, mobile phones |
| Connectivity Technology | Wireless |
| Control Method | Touch |
| Control Type | control |
| Controller Type | Button |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 3.2 3.2 out of 5 stars (681) |
| Date First Available | June 18, 2015 |
| Earpiece Shape | In Ear |
| Hardware Interface | 3.5mm Audio |
| Headphones Jack | 3.5 mm Jack |
| Included Components | Battery, Earpiece, Inductive Coil, Microphone |
| Input Device Interface | Audio jack |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.035 ounces |
| Item model number | UMD-VP-2 |
| Manufacturer | COOMAX |
| Material | Plastic |
| Noise Control | None |
| Number of Items | 1 |
| Other display features | Wireless |
| Product Dimensions | 0.39 x 0.28 x 0.2 inches |
| Sensitivity | 110 dB |
| Series Number | 2 |
| Special Feature | Microphone Included |
| Special features | Microphone Included |
| Specific Uses For Product | Communication, Personal |
| Style | A680 |
| Supports Bluetooth Technology | No |
| UPC | 631390819936 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Not Water Resistant |
| Wireless Communication Technology | RF |

## Product Details

- **Brand:** COOMAX
- **Color:** Beige
- **Ear Placement:** In Ear
- **Form Factor:** In Ear
- **Impedance:** 100 Ohms

## Images

![Mini Hidden Spy Earphone Wireless Earpiece Headset Microphone Detection - Image 1](https://m.media-amazon.com/images/I/6177-6g7o0L.jpg)

## Questions & Answers

**Q: can it be seen? is it really hidden and cant be seen? need this for a really important exam that matters life.**
A: Yes! it is completely hidden, and sits inside your hear. Only you can hear from it. It is virtually undetectable.

**Q: How long does the battery last?**
A: it´s about 6-8 hours, I open the hatch (where the battery is) when I´m not using the device so I can use it longer. (It probably last's longer but u loose volume, when the volume goes down i change the battery).  I bought a bunch of these batteries somehere on amazon, where I found them cheap. - Hope that helps

**Q: can i use this to transmit audio to a person wearing the ear piece who is inside another room**
A: When you make a phone call to the person wearing the ear piece who is inside another room ,he/she will hear your voice and can talk with you. just like the normal earphone with Mic.

**Q: I have tiny ears, most ear buds that go in your ears dont fit me, will these fit?**
A: It definitely will, trust me !

## Customer Reviews

### ⭐⭐⭐⭐⭐ Bad reviews remind me of the "story" of when monkey's handle delicate stuff
*by S***L on March 17, 2019*

Lovely - One of the MOST successful hidden ear pieces ever! USE: It goes all the near the ear drum, yet easy to remove holding it's tail VISIBILITY: it is completely hidden MUSIC: the sound quality is NOT meant for playing Music but for human voice which is clear enough CONTROL: the volume is controlled by phone volume controls EASY OF USE: easily plugs in the headphone jack just like a regular headphone BLUETOOTH: Are you kidding me? This is a typical phone headphone jack compatible, not a Bluetooth CONCEAL CABLE: the thick cream color cable is to be worn around the neck UNDER THE SHIRT and the ear phone ONLY works when it is in the middle of the think cream cable, it has to be in the frequency to work EAR BURSTING VOLUME?: the volume is relatively mild to high if you place it correctly & deep enough with it's tiny speaker opening towards the ear drum DOES IT GET TOO HOT: Again, are you kidding me? It's a 1.5 DC Volt, can NOT be more harmless, yes it does get slightly warm but you will NOT even feel it, I never did feel it, may be if you were to take a infrared heater lol ENVIRONMENT: clear enough to be used in slightly noisy environments like debates, classrooms etc, but, the more silent the better MICROPHONE SENSITIVITY: the mic is sensitive enough, just make sure to NOT rub it under your shirt - sit down, don't move too much, the fabric can rub over the mic via movements and the other person on the phone may not hear you well, so I keep the mic exposed but remainder cable in - works great for me... It also worked great when it was under the shirt, I wore a black shirt. Even if you keep the pic exposed there is NO physical connection like a wire between your ear and the mic - this is a HUGE advantage. Try wearing a thin shirt and dark color shirt out of common sense, do NOT hear jacket or heavy cotton shirt and expect the sound to pass thru heavy blankets. BUT THE BAD REIVEWS: Well, it is a delicate device, if you insert the battery the wrong way and press it, it WILL break buddy, if you pull the battery door tooo hard it will break, it is made of plastic and elastic!! If you are going to handle it appropriately it will NOT break HOW LONG HAVE I HAD IT?: At least 4 to 6 months I guess, I have even bought extra batteries for it, already drained one battery and the volume had gotten very low, I use it for 15 mintues to 1 hour at a time, sometimes just for about 5 minutes depending on that "Video" conference and I need help delivering presentations or when I need to go to a client meeting with my manager delivering current market statics in my head literally! It fits in your ear canal. BUT, THE SO MANY BAD REIVEWS: That is the exact reason I am writing this detailed review, just think how delicate you have to handle small components like delicately handling quarts watch minute hand, hour hand, seconds hand then you will be able to understand the plastic built is pretty strong considering it's size and yes there are small components inside so just be careful while inserting and removing battery, take care of the positive side and the negative side of the battery.. I will buy this again!! It lasted me so many months!

### ⭐ I took a gamble but lost. Perhaps you'll have better luck.
*by M***. on July 18, 2025*

I really wanted this to work out. This is something I've been looking for and it seemed perfect. After reading the reviews, I felt I had a 50-50 chance. Most people either loved it or had absolutely no success with this item. I fall into the ladder group. First time I tried it, and inserted the battery correctly, there was a hum in my ear, but I could never get any audio. No music, no phone calls nothing. I did everything I was supposed to do and wore the wire against my skin. I performed my due diligence by opening the other battery, because two batteries come with this unit, and inserted it into the earpiece the correct way, and I didn't even hear a hum. It was completely silent. Perhaps I received a faulty unit. Either way, it didn't work for me and I now have to find an alternative so if there are any suggestions out there, please let me know. Again I really wanted this to work, but I had zero success with it.

### ⭐⭐⭐⭐⭐ Is it perfect? No but the damn thing works!
*by M***A on August 19, 2022*

Not one to write many reviews but I am happy with my purchase. Considering the size of the super discrete earpiece it will of course limitations but it works!! Battery last about 5-6 hours, so I simply pack a few spares to get me through my 10 hour work day! Also, not meant for music but works perfectly for podcast, youtube audio and auido books. It also suffers with inteferance on electrical devices, so consider your surroundings before making the purchase. Overall very happy!! Thanks!

## Frequently Bought Together

- COOMAX Mini Hidden Spy Earphone Wireless Earpiece Headset Microphone Detection
- SKOANBE SR416SW 337 1.55V Watch Battery (10-Pack)

---

## 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.mx/products/15620204-mini-hidden-spy-earphone-wireless-earpiece-headset-microphone-detection](https://www.desertcart.mx/products/15620204-mini-hidden-spy-earphone-wireless-earpiece-headset-microphone-detection)

---

*Product available on Desertcart Mexico*
*Store origin: MX*
*Last updated: 2026-01-24*