--- product_id: 53617427 title: "GSM N9 Mini Quadband Voice Sound Audio Activate Device Sim Card Ear Bug Monitor Surveillance Device" brand: "hdst-e12" price: "$4.30" currency: USD in_stock: false url: https://www.desertcart.us/products/53617427-gsm-n9-mini-quadband-voice-sound-audio-activate-device-sim store_origin: US region: United States of America --- # Quadband GSM 900/1800/1900 MHz Up to 15 days standby battery life 10m sensitive built-in mic range GSM N9 Mini Quadband Voice Sound Audio Activate Device Sim Card Ear Bug Monitor Surveillance Device **Brand:** hdst-e12 **Price:** $4.30 **Availability:** ❌ Out of Stock ## Summary > 🎧 Stay one step ahead with covert clarity and control. ## 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?** $4.30 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/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:** Enjoy up to 15 days standby time with voice activation off, ensuring long-term covert operation. - • **Smart Voice Activation:** Automatically call back when sound exceeds 45dB—no wasted battery, just instant alerts. - • **Effortless Remote Control:** Toggle voice activation via simple SMS commands—control your device from anywhere with ease. - • **Discreet 10m Audio Monitoring:** Hear every detail clearly with a built-in microphone that captures sound within a 10-meter radius. - • **Seamless Quadband Connectivity:** Stay connected globally with GSM 900/1800/1900 MHz support for uninterrupted surveillance. ## Overview The GSM N9 Mini is a compact, quadband GSM audio bug designed for covert surveillance. Insert an unlocked SIM card, hide the device, and remotely listen to conversations within a 10-meter range. Featuring voice-activated call-back, SMS control commands, and a built-in rechargeable battery offering up to 15 days standby, it’s engineered for discreet, reliable monitoring anywhere GSM networks operate. ## Description Description :GSM N9 Mini Quadband Voice Sound Audio Activate Device Sim Card Ear Bug MonitorFeatures:Just insert a GSM SIM card into the slot and put the audio bug at hidden place, then dial the card number to monitor your target, you will hear the sound arround the bug Make a call to the audio device and you can instantly listen in to conversations, the built-in microphone receiving range up to 10 meter. GSM voice/ Audio monitor Bug. Built-in battery. GSM bug with sound activation function ( insert the GSM SIM card ) GSM. Voice activation, you can call back your phone automatically when the sound arround it up to 45DB. You can send message command or cancel voice activation function by easy SMS "1111" or "0000" only. Standby Time 3-5 days (If Acoustic Alarm function Off, standby time 12-15 days). SIM card must be unlock from pin number (otherwise it cannot works with the bug deivce).Specification :Operating Frequency : 900MHZ, 1800MHZ, 1900MHZ.Dimensions : Appro x . 4.3 x 3.2 x 1.4cm / 1.69 x 1.26 x 0.55"Color : BlackPackage Includes:1 x GSM N9 Surveillance Device 1 x USB Cable 1 x Power Charger 1 x User Manual ## Features - GSM N9 Mini Quadband Voice Sound Audio Activate Device Sim Card Ear Bug Monitor Surveillance Device ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01HN0I2TK | | Battery Types | Built-in | | Best Sellers Rank | 397,646 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 300,255 in Accessories (Computers & Accessories) | | Brand Name | HDST-E12 | | Button Quantity | 1 | | Compatible Devices | Smartphone | | Controller Type | Button Control | | Manufacturer | HDST-E12 | | Manufacturer Part Number | HDST-E12 | | Maximum Range | 10 Metres | | Model Name | HDST-E12 | | Model Number | HDST-E12 | | Network Connectivity Technology | GSM | | Product Features | Voice Search | | UPC | 661725193639 | | Unit Count | 1.0 count | ## Product Details - **Battery description:** Built-in - **Brand:** HDST-E12 - **Compatible devices:** Smartphone - **Connectivity technology:** GSM - **Controller type:** Button Control - **Maximum range:** 10 Metres - **Model name:** HDST-E12 - **Number of buttons:** 1 - **Special feature:** Voice Search - **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 --- ## 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.us/products/53617427-gsm-n9-mini-quadband-voice-sound-audio-activate-device-sim](https://www.desertcart.us/products/53617427-gsm-n9-mini-quadband-voice-sound-audio-activate-device-sim) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-19*