---
product_id: 53617427
title: "GSM N9 Mini Quadband Voice Sound Audio Activate Device Sim Card Ear Bug Monitor Surveillance Device"
brand: "hdst-e12"
price: "521 zł"
currency: PLN
in_stock: true
url: https://www.desertcart.pl/products/53617427-gsm-n9-mini-quadband-voice-sound-audio-activate-device-sim
store_origin: PL
region: Poland
---

# Quadband GSM 900/1800/1900 MHz 10m sensitive built-in mic range Up to 15 days standby battery life GSM N9 Mini Quadband Voice Sound Audio Activate Device Sim Card Ear Bug Monitor Surveillance Device

**Brand:** hdst-e12
**Price:** 521 zł
**Availability:** ✅ In Stock

## Summary

> 🎧 Hear what others can't—stealth surveillance redefined.

## Quick Answers

- **What is this?** GSM N9 Mini Quadband Voice Sound Audio Activate Device Sim Card Ear Bug Monitor Surveillance Device by hdst-e12
- **How much does it cost?** 521 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/53617427-gsm-n9-mini-quadband-voice-sound-audio-activate-device-sim)

## Best For

- hdst-e12 enthusiasts

## Why This Product

- Trusted hdst-e12 brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Extended Battery Life:** Up to 15 days standby with sound activation off, ensuring long-term monitoring without frequent charging.
- • **Smart Sound Activation:** Automatically calls you back when ambient noise exceeds 45dB—never miss a moment.
- • **Effortless Remote Control:** Toggle voice activation via simple SMS commands for ultimate convenience and control.
- • **Discreet Audio Surveillance:** Hidden mini bug with a 10-meter microphone range captures every detail without detection.
- • **Seamless Quadband Connectivity:** Stay connected globally with GSM frequencies covering 900, 1800, and 1900 MHz bands.

## Overview

The HDST-E12 GSM N9 Mini Quadband Surveillance Device is a compact, battery-powered audio bug that uses GSM SIM cards to enable remote listening. Operating across three global GSM bands, it features a sensitive built-in microphone with a 10-meter range and smart sound activation that calls you back when noise exceeds 45dB. With up to 15 days of standby time and SMS-based remote control, it offers discreet, reliable monitoring ideal for professional-grade surveillance.

## Description

GSM N9 Mini Quadband Voice Sound Audio Activate Device Sim Card Ear Bug Monitor Surveillance Device

## Features

- GSM N9 Mini Quadband Voice Sound Audio Activate Device Sim Card Ear Bug Monitor Surveillance Device

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | HDST-E12 |
| Item model number | HDST-E12 |
| Manufacturer | HDST-E12 |
| Series | HDST-E12 |
| Connectivity Type | gsm |
| Wattage | 3 watts |
| Power Source | Battery Powered |
| Battery description | Built-in |
| Are Batteries Included | No |
| Guaranteed software updates until | unknown |

## Product Details

- **Brand:** HDST-E12
- **Special feature:** Voice Search
- **Compatible devices:** Smartphone
- **Connectivity technology:** GSM
- **Number of buttons:** 1
- **Controller type:** Button Control
- **Model name:** HDST-E12
- **Maximum range:** 10 Metres
- **Battery description:** Built-in
- **UPC:** 661725193639

## Images

![GSM N9 Mini Quadband Voice Sound Audio Activate Device Sim Card Ear Bug Monitor Surveillance Device - Image 1](https://m.media-amazon.com/images/I/4136oMJOYDL.jpg)
![GSM N9 Mini Quadband Voice Sound Audio Activate Device Sim Card Ear Bug Monitor Surveillance Device - Image 2](https://m.media-amazon.com/images/I/41px3bpGQEL.jpg)
![GSM N9 Mini Quadband Voice Sound Audio Activate Device Sim Card Ear Bug Monitor Surveillance Device - Image 3](https://m.media-amazon.com/images/I/51l2vSxe5aL.jpg)
![GSM N9 Mini Quadband Voice Sound Audio Activate Device Sim Card Ear Bug Monitor Surveillance Device - Image 4](https://m.media-amazon.com/images/I/416CfFa0uIL.jpg)
![GSM N9 Mini Quadband Voice Sound Audio Activate Device Sim Card Ear Bug Monitor Surveillance Device - Image 5](https://m.media-amazon.com/images/I/516LxpOdkBL.jpg)

## Frequently Bought Together

- HDST-E12 GSM N9 Mini Quadband Voice Sound Audio Activate Device Sim Card Ear Bug Monitor Surveillance Device
- 3 in 1 Nano SIM Card Adapter, SIM Card Adapter Kit, Sim Adapter Set Sim Card Adapter with SIM Ejector Pin Compatible with Mobile Phone

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**Shop now:** [https://www.desertcart.pl/products/53617427-gsm-n9-mini-quadband-voice-sound-audio-activate-device-sim](https://www.desertcart.pl/products/53617427-gsm-n9-mini-quadband-voice-sound-audio-activate-device-sim)

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-02-04*