Upgraded Micro Auto Callback GSM listening device with adjustable sensitivity

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  • Regular price £49.99

This fantastic upgraded listening device spy bug is the best on the market by far. As this is sourced from the genuine manufacturer, it has the clearest sound monitoring, with the benefit of a simple, flexible setup. 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 genuine product, not 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. Add a Wireless GSM spy surveillance bug TRIPLE BATTERY PACK (optional product) with your purchase and you could achieve up to 15-20 days standby.

Improved features include:

1) Auto-call back function so device calls you when it detects sound therefore, removing the need to constantly listen

2) Dual microphone for clearer monitoring of surrounding area

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

4) Adjustable sensitivity, (10-100db) for auto call back feature by simply sending a text. This feature is brilliant in areas with lots of background noise, stops you being called unnecessary

5) Text alert feature therefore, the device can text you when it detects noise. You then device whether to call the device up and listen. Ideal for the busy person that hasn’t always got time to dial in or be called up to listen.


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 two 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 a 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.

At a Glance
Upgraded aerial, often works where other devices struggle get a GSM signal
Auto Dialling option with sensitivity 10 - 100db
Tri-Band GSM Audio Spy Device

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

Auto text to alert you when sound is detected in the area
Microphone Range: up to 8-meter radius
Power: Built In 200 mAh Rechargeable Li-ion Battery
Working Time: up to 5 hours
Standby Time:
Voice Control On: up to 3-5 days
Voice Control Off: up to 5-10 days
All estimates are based on a fully charged battery with ideal reception.
Dimensions: 4 x 3 x 1 (cm)

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 Vodafone, Virgin or EE 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.


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.