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Spy bug – GSM listening device

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12.250 rsd

Spy bug – GSM eavesdropper is a very practical real-time eavesdropping device. It’s a device of small dimensions and of unlimited range. It can be set anywhere, and it is turned on completely silently, by voice activation, or by calling your phone number from the SIM card set the eavesdropper.

Thanks to a built-in filter that softens murmurs and neutralizes noise, the sound is crystal clear and coherent. The device has a genuine Apple rechargeable battery that can last up to several days depending on the operating mode.

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The GSM eavesdropper – spy bug is a high-quality and practical listening device, easy to use. Its key advantages compared to other eavesdroppers are:

  • Unlimited listening range
  • Simple voice activation
  • Clear sound
  • Compact size
  • Long battery autonomy

An unlimited listening range means the device can be used for eavesdropping from any access point with GSM network coverage. When activated, it allows real-time listening to conversations in the room where it’s located. The device starts working silently, without vibration, light, or sound signals.

How to activate the GSM listening device – spy bug?

The device can be activated in two ways. First, the user can call the number of the SIM card inserted into the listening device. After the second ring, the device is activated, and the user can listen to everything happening in the room. Second, the GSM eavesdropper can be set to voice activation mode, automatically turning on when it detects a sound.

To set this spy device to voice activation mode, the user needs to send an SMS message with specific content to the SIM card number in the eavesdropper. Once it detects a sound, the device is activated and sends an SMS message back to the user, indicating that eavesdropping is in progress. To disable the voice activation option, sending another specific SMS message to the eavesdropper’s SIM card number is required.

The voice activation option is highly practical and useful. There is no risk of missing anything important since the device notifies the user when sound is detected in the room. Due to this feature, the GSM listening device can also be used as a security system.

GSM listening device with enhanced microphones

The GSM listening device ensures clear and crisp sound thanks to a specialized, amplified microphone. This sensitive microphone can capture even distant whispers, reproducing them clearly. Special filters eliminate background noise and disturbances in the room. Additionally, thanks to the encoded frequency, there is no possibility of interference or disruption during eavesdropping.

If the user doesn’t have time to listen to what is happening in the monitored space, conversations can be recorded on a mobile phone if it has that function. This can be highly useful, as the recorded material can be thoroughly reviewed, saved, and used when needed.

Where can the GSM spy bugs be hidden?

The spy bug can be used for eavesdropping in any residential or commercial space, and the device can be connected to a car battery, which is beneficial for vehicle tracking and surveillance.

The GSM spy bug has small dimensions, similar to a matchbox. Thanks to this, it can be concealed in various places in a room. It has an inconspicuous appearance, even without specific camouflage, and doesn’t raise any suspicion, especially since its activation and operation are completely silent.

These devices are commonly hidden on shelves between books and decorations. They can be placed in desk or bathroom drawers, among children’s toys, inside a lamp, or in a container with pens, and similar locations. Additionally, with the use of double-sided adhesive tape, the wiretap can be attached to any surface, such as under a table, bed, or behind a cabinet.

What can you discover with a spy bug?

The spy GSM bug can be used for audio surveillance in business premises, apartments, or cars. With it, you can find out what employees are talking about and verify their loyalty. It can be installed in offices, warehouses, sales counters, or official vehicles. It can also be used for real-time listening to business meetings.

This spy device is ideal for monitoring children. If hidden in their room, you can listen to what your children are doing in real time, find out who they interact with and their intentions, and also monitor the work of babysitters. If installed in a bedroom, the wiretap can reveal infidelity in a marital or romantic relationship. Spy bugs are also commonly used by detectives and investigative agencies in their covert operations.

A significant advantage of this GSM spy device is its long battery autonomy. It can be directly connected to a power source using a special charger, if feasible, or camouflaged. Additionally, if the eavesdropper is used in a car, it can be connected to the vehicle’s battery. In both cases, the eavesdropper’s operation is unlimited in terms of time.

The spy GSM bug can also serve as a security system. If installed in an apartment, office, or car, it can detect the sound of a break-in or burglary and alert the owner in time.

Call or visit us. Our range of spy products includes a large number of high-quality and technologically advanced spy bugs and eavesdroppers. You can also explore other spy devices in our offering, and we will recommend the device that best suits your needs. Complete discretion is guaranteed.

  • Some technical details in the ‘Description’ section may vary depending on the device model. For the exact specifications of a specific model, please refer to the ‘Specification’ section.





Voice activation Yes
Superior sensitivity Yes
Real-time listening Yes
Max listening area 20m²
Soundless device Yes
Unlimited listening range Yes
Impossibility to interfere in the relationship Yes

Power supply

The possibility of working on batteries Yes
Battery type Li-ion
Battery capacity 350mAh
Battery life: up to 2 days in standby mode
Integrated battery Yes


Type SIm card SIM
Operating frequency 2G, 3G


Sensitivity 60dB

Physical characteristics

Device material ABS plastic
Working temperature -40°C to 50°C
Device color Black
Frequency range of the microphone 20 Hz to 20.000 Hz
Port type Micro USB

Weight and dimensions

Weight 21g
Width 43mm
Depth 36mm
Height 13mm

Packet Includes

  • USB cable
    Micro USB cable with good conductivity and quality insulation, which protects your device in any situation. It is used both for charging devices and for transferring data from various household devices such as mobile devices, mp3, cameras,…
  • Charger
    Euro type F, compatible with an input voltage of 100-240V alternating current and USB A with 5V output, which is compatible with the European market and is used to power small household appliances, such as mobile devices, tablets, recorders, WiFi speakers,…
  • Instructions for use
    It serves to guide you and adequately use all the functions of the device. In the manual, you can find detailed steps on how to operate the device in the easiest way.

How to use

Additional information



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How can you activate bug eavesdropping?

First, you will need to insert any operator’s SIM card. Then, you’ll have to call the number from your phone to start eavesdropping in real time.

What is the maximum distance I can eavesdrop from?

You can eavesdrop on conversations no matter how far away you are. The device is based on cellular technology — you will only need minimal GSM coverage.

What is the device’s battery autonomy?

The spy bug comes with a rechargeable battery that can last up to 3 days in standby mode.

Can I place this device in my car?

Due to its dimensions, it is very easy to hide this tiny spy bug inside any car. It is even possible to connect it to the car battery. That way, you will be able to monitor the conversations in the car constantly.


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Spy bug – GSM listening device

12.250 rsd