---
product_id: 625099265
title: "PingaOculto Spy Earpiece for Exams ON OFF Button Battery Case (Nano Pro) | 3.5 mm jack, Integrated microphone, Calls and recordings, iPhone and Android, Invisible, Wireless earpiece, Hidden earpiece"
brand: "pingaoculto"
price: "€ 72.10"
currency: EUR
in_stock: true
reviews_count: 8
category: "Pinga Oculto"
url: https://www.desertcart.sk/products/625099265-pingaoculto-spy-earpiece-for-exams-on-off-button-battery-case
store_origin: SK
region: Slovakia
---

# 4 hours battery-free operation Integrated whisper mic 3mm ultra-mini invisible size PingaOculto Spy Earpiece for Exams ON OFF Button Battery Case (Nano Pro) | 3.5 mm jack, Integrated microphone, Calls and recordings, iPhone and Android, Invisible, Wireless earpiece, Hidden earpiece

**Brand:** pingaoculto
**Price:** € 72.10
**Availability:** ✅ In Stock

## Summary

> 🕶️ Stay invisible, stay ahead — the ultimate secret weapon for exam pros and presentation ninjas.

## Quick Answers

- **What is this?** PingaOculto Spy Earpiece for Exams ON OFF Button Battery Case (Nano Pro) | 3.5 mm jack, Integrated microphone, Calls and recordings, iPhone and Android, Invisible, Wireless earpiece, Hidden earpiece by pingaoculto
- **How much does it cost?** € 72.10 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/625099265-pingaoculto-spy-earpiece-for-exams-on-off-button-battery-case)

## Best For

- pingaoculto enthusiasts

## Why This Product

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

## Key Features

- • **Complete Covert Kit:** Includes extraction magnet and induction collar for easy use and removal—everything you need except the 9V battery.
- • **Power Without Charging:** Operates via electromagnetic induction—no charging needed, just swap the 9V battery in the induction collar.
- • **Stealth Mode Activated:** The tiniest 3mm earpiece, completely hidden and undetectable for flawless covert use.
- • **Universal Compatibility:** Works seamlessly with all 3.5mm jack devices—iPhone, Android, MP3 players, and more.
- • **Whisper-Quiet Communication:** Built-in microphone lets you communicate discreetly even in the quietest exam rooms or presentations.

## Overview

The PingaOculto Spy Earpiece Nano Pro is a cutting-edge, ultra-mini 3mm wireless earpiece designed for discreet communication during exams, presentations, or covert operations. Powered by electromagnetic induction via a hidden collar (9V battery required), it offers up to 4 hours of battery-free operation with an integrated microphone for whisper communication. Compatible with all 3.5mm jack devices, this stealthy device includes a magnet extraction tool and is engineered for maximum invisibility and ease of use.

## Description

Product Description -Description- Spy Earpiece Nano Pro - PingaOculto The Nano Earpiece is a tiny (3 mm), concealed earpiece , similar to a lentil. It is completely undetectable as it is invisible once inserted into the ear canal. It requires a phone or MP3 player connected via the 3.5 mm jack headphone port to work . You can make both phone calls and recordings . During phone calls, the integrated microphone allows communication, even when whispering . -Operation- It requires an induction collar worn under clothing to operate. This collar is powered by a 9V battery (* not included ) and features an ON/OFF function, protective battery case and a multifunction button for Play/Pause Answer/End call The Nano Earpiece does not require charging as it is made from a material that reacts to the induction from the induction collar, causing a sound. The induction collar must be hidden around the neck. Complete Kit Includes everything you need except the 9V battery and the mobile/mp3. Extraction Bar + Magnet The Extraction Bar and Magnet make it easy to remove the earpiece . Nano Earpiece The magnet nano earpiece is the smallest concealed earpiece with a diameter of 3 mm . Electromagnetic Induction Thanks to the safe technology of electromagnetic induction, we can use an earpiece the size of a lentil. Used in exams for extra help. Used in presentations to enhance the presentation. Used by spies as a means of communication. Nano Models Earpiece Nano Pro Earpiece Nano V2 Earpiece Nano V3 Earpiece Nano V4 Earpiece Nano V5 Earpiece Nano V6

Review: Need some more things - Horrible I can’t hear anything Rubbish
Review: Ugly device, complicated to operate - The earbud is nice but the rest of the equipment is so awfully ancient, looks like devices created for KGB spies from the 50's. Is not cheap

## Features

- 🕵【 Invisible Earpiece 】The smallest wireless, hidden magnet earpieces on the market with a mini size of only 3 mm in diameter. Completely hidden in the ear and undetectable.
- ⭐【 For Exams 】The exam earpiece serves as an exam cheat sheet for presentations or spy communications. The magnet spy earphones can be used in noiseless environments such as an exam room or library.
- 📱【 Calls and Recordings 】Works with mobile phone for phone calls or recordings by connecting via 3.5 mm jack plug. Compatible with all mobile phones including iPhone and Android.
- 🎙️【 Integrated Microphone 】It includes a small spy microphone built into the cable that is placed hidden around the neck and allows you to communicate in whispers.
- 🔋【 Hours of Autonomy 】Approximately 4 hours of battery life depending on volume. Includes ON/OFF function and protective battery cover. The Invisible Magnet Earpiece does not require charging. *The induction collar requires 1 x 9V battery (not included).

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D22Z38FR |
| Age Range Description | Adult |
| Antenna Location | Exams, Presentations, Espionage |
| Audio Driver Type | Dynamic Driver |
| Battery Average Life | 4 Hours |
| Battery Charge Time | 4 Hours |
| Best Sellers Rank | 3,964 in In-Ear Headphones |
| Bluetooth Version | 5.0 |
| Box Contents | User Manual |
| Brand | PingaOculto |
| Brand Name | PingaOculto |
| Cable Features | Tangle Free |
| Carrying Case Color | Black |
| Colour | Black |
| Compatible Devices | Bluetooth-enabled devices such as cellphones, laptops, and gaming consoles |
| Control Method | Touch |
| Control Type | Volume Control |
| Country of Origin | China |
| Customer Package Type | FFP |
| Customer Reviews | 2.5 out of 5 stars 66 Reviews |
| Ear placement | In Ear |
| Earpiece Shape | rounded tips |
| Enclosure Material | Plastic |
| Form factor | In Ear |
| Frequency Range | 20Hz - 20,000Hz |
| Headphone Form Factor | In Ear |
| Headphone Jack | 3.5 mm Jack |
| Headphones Ear Placement | In Ear |
| Impedance | 100 Ohms |
| Is Autographed | No |
| Manufacturer | PingaOculto |
| Model Name | Nano Pro |
| Model Number | UMD-ST-NANO-1 |
| Network Connectivity Technology | Wireless |
| Noise Control | None |
| Noise control | None |
| Number of Items | 1 |
| Product Features | Microphone Included |
| Product Warranty | 2 year |
| Specific Uses For Product | Exams, Presentations, Espionage |
| Style Name | Minimalist |
| Theme | Exam Support |
| UPC | 659657748270 |
| Unit Count | 2.0 count |
| Water Resistance Level | Not Water Resistant |
| Wireless Technology Type | Electromagnetic Induction |

## Product Details

- **Brand:** PingaOculto
- **Colour:** Black
- **Connectivity technology:** Wireless
- **Ear placement:** In Ear
- **Form factor:** In Ear
- **Headphone jack:** 3.5 mm Jack
- **Impedance:** 100 Ohms
- **Model name:** Nano Pro
- **Noise control:** None
- **Wireless communication technology:** Electromagnetic Induction

## Images

![PingaOculto Spy Earpiece for Exams ON OFF Button Battery Case (Nano Pro) | 3.5 mm jack, Integrated microphone, Calls and recordings, iPhone and Android, Invisible, Wireless earpiece, Hidden earpiece - Image 1](https://m.media-amazon.com/images/I/61KITXHJc1L.jpg)

## Available Options

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

## Customer Reviews

### ⭐ Need some more things
*by A***E on 28 February 2026*

Horrible I can’t hear anything Rubbish

### ⭐⭐ Ugly device, complicated to operate
*by S***. on 29 March 2025*

The earbud is nice but the rest of the equipment is so awfully ancient, looks like devices created for KGB spies from the 50's. Is not cheap

### ⭐ Battery box doesn’t work nothing works with battery’s in
*by N***R on 4 September 2025*

Didn’t work took ages to arrive .

## Frequently Bought Together

- PingaOculto Spy Earpiece Wireless Earphones Invisible Hidden Mini Headset Exam Phone Wired Microphone - Secret Earphone Micro Listening Device Hearing in Ear Cheating (Spy Earpiece Nano + Microphone)
- PingaOculto Spy Earpiece Wireless Earphones Invisible - Silver Oxide Button Cell Batteries with Battery Voltage 1,55 V 8 mAh (4 Battery Units 337 - SR416SW for Spy Earpiece Vip Pro Mini or SuperMini)
- renata Swiss Watch Battery 3 x 337 or SR416SW Made of Silver Oxide 1.5 V (SR43SW)

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**Shop now:** [https://www.desertcart.sk/products/625099265-pingaoculto-spy-earpiece-for-exams-on-off-button-battery-case](https://www.desertcart.sk/products/625099265-pingaoculto-spy-earpiece-for-exams-on-off-button-battery-case)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-07-30*