Best Selling GSM spy listening device with Auto Callback & Upgraded Sound Recording

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  • £44.99
  • Regular price £49.99
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The professional listening device is exclusive to us & used by domestic and security professionals all over the world. Our genuine professional version has recently been upgraded to include sound recording, extended battery life, magnet and a great microphone. Device doesn't make any sounds and has no external lights so no one will suspect your listening in. You only get one chance to capture that sound, so don't throw it away with an inferior copy!

All you have to do is insert a sim card, position the device, send it a simple text and you’re ready to call it up at your convenience or it can call you, when it detects talking or increased activity. It really is as simple as that.

It’s a third smaller with the same great performance as the previous version. Device has a new smaller, more compact shape at just over 4cm in length. This is amazing that such a small device will pack this great quality listening device. As this exclusive product is sourced from the genuine manufacturer, it has great sound monitoring via two microphones, with the benefit of a simple, flexible setup and unlike cheaper copies, this has adjustable sensitivity. Therefore, this device can be used in more scenarios, loud, quiet, busy, there is a setting to suit. Take the gamble out of purchasing the right product as this is a superior product with a great pickup.


At a Glance
Upgraded aerial, often works where other devices struggle to get a GSM signal

Simple to use text instructions allow you to control device by sending simple texts from your mobile

Sound recording to Micro SD card (Card not included as standard, easily installed at a later date)

Upgraded Quad-Band GSM Audio Spy Device

Runs off GSM technology using the same technology as GSM mobile phones.

Standard Micro USB connector for charging or power bank connectivity

Auto call back to alert you when sound is detected in the area

Microphone Range: up to 8-meter radius

Power: Built In 250 mAh Rechargeable Li-ion Battery

Improved professional features include:

1) Sound recording upgrade enables you record sound onto a Micro SD card, rather than having to listen in.

2) Upgraded microphone for clearer monitoring of surrounding area

3) Improved aerial, to enable reception in areas other devices struggle with

4) Device auto adjusts sound level filtering, helps reduce unwanted background noise

5) Standard Micro USB cable connectivity, no more relying on a bespoke cable

6) Intergrated magnet to allow you to place device under a metal object


The device can automatically call you when it hears talking or increased activity. Alternatively, you can easily switch the devices operation to call the device at your convenience.
Just send a text to the secret gsm spy bug listening device and it will call you back. Put the phone down when you have finished listening & it will call you again when there is more activity. You can hear this GSM spy device from anywhere in the world.

When you call the mobile number, this device will auto answer. You can hear talking or whatever you are listening for when you call in to the sim card. Useful at home with the babysitter, teenager, protecting your car etc. No flashing lights or sounds when activated by your call

This two-way gsm spy bug listening device comes with three amazing functions:
(1) Make a call to the sim card spy bug and you can instantly listen in to conversations! The built-in microphone works up to 8-meter radius, so set this bug up wherever you want!
(2) Allows the spy audio device to call you when it hears people talking! This feature makes it much more advanced than most other GSM audio bugs on the market today.

(3) Sound recording upgrade enables you to instruct the device by a simple text to record sound onto a standard Micro SD card up to 32gb. Card can be easily inserted or removed to play back at a later date on your computer or audio player.

Insert MicroSD memory card up to 32GB (not included) to store up to 222 days worth of audio recording. Sound recorder is not sound activated. When activated recording function constantly records in .AMR digital format (audio mobile recording) saving consecutive 10 minute files until stopped by text.


250mAh Rechargeable Li-ion Battery

Auto-call back current:30mA

Standby current:2.5mA

Listening current:150mA

Working Time: up to 3 hours continuous listening

Standby Time up to 2 days

Voice Control on: up to 2 days

All estimates are based on a fully charged battery, activity (listening time) with an ideal reception.


Dimensions: 41x 23 x 14.5mm

Package includes: GSM listening device, USB charging cable, basic instructions


To use the features on this product you will require a compatible GSM sim card once you have tested ok put some credit on the sim to ensure that the network keeps it active.

It's always best to stick with a network that you know has a decent reception in the area that the product is being used, we normally recommend EE, Vodafone, Virgin or Lebara in the UK as these have good network coverage. Device works with most GSM networks across the world.

O2 & the 3 Network sim cards will NOT work with listening devices as they are mainly 3g sim cards.

You can add a compatible GSM sim card to your purchase by selecting from here Sim Cards and Add to Cart.

You can add a compatible memory card to your purchase by selecting from here Memory Cards and Add to Cart.


Warning: This product should not be used for any illegal purposes; you may be subject to prosecution under applicable laws.
It is illegal to make recordings (audio/visual) of any person(s) without their prior knowledge and/or consent.