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GM20 - 6 bands Jammer (7W)

  • Availability: In Stock
  • $499.00
Should you require a fully bespoke configuration for this jammer please contact us at [email protected]

Jammer Store Company is a leader of the radio frequencies blocking equipment industry. The quality of all our products is the top priority for us because we are not just dealing those electronic devices but manufacture them. Our devices are meant to satisfy the needs of our customers in the most effective and reliable way and that is why we are constantly improving our products and services. To make sure that you will get effectively working quality product we perform many different tests with our devices.

To get the product you like, you need to make a payment first. The next day after the payment your device will be shipped to you. It takes from 4 to 6 days for your package to reach you, depending on what country you are in. All our shipments are done with DHL – the most reliable delivery operator of the global level. DHL provides not only delivery of your orders in time and undamaged but also has a useful feature of tracking number that you can use to watch the movement of your device via internet. As a rule, we are sending that tracking number to you right after the start of your order shipping.

For you our DHL shipping is always free, no matter it will be local or international delivery. As an additional free service we mark all our shipments with low price tags to avoid any fees at the customs.

For your absolute convenience in our services we also provide a one year warranty on all our products. Such long warranty period is new to the industry and we are proud to be the first company that provides it. If there are any reasons which make you unsatisfied with the product you get – contact us and we will solve the issue, either replacing your device with just the same or making a refund. You can get a refund within 14 days from the moment of your order delivery. Add this to one year warranty and you will see that you can be totally confident in our shipping and returns reliability.


The GM20 is a military-type jammer used in conflict zones to prevent death or injury from IEDs. There are also risks in urban environments. Therefore, this device will help to significantly reduce the risks of life threats by preventing explosions from remote bombs.

The GM20 is a jammer that can also be useful for other purposes. This device actively blocks Bluetooth, 3G, WiFi, and other signals. It can be used to secure various spy devices, ensuring maximum privacy for you. This device will handle common types of wireless signals, saving lives.


Device specifications:


  • The total power is 7W
  • Battery life is three hours
  • The power adapter is rated for 110-240V, while the car adapter is rated for 12V
  • The weight of the structure is one kilogram
  • Battery capacity is 8000 mAh
  • The structure size is 175x70x35mm
  • The device operates on European frequencies from 850 to 2500 MHz and American frequencies from 925 to 2500 MHz


The jammer allows you to silence the following signals completely:


  • Monitoring cameras
  • Spy devices
  • Scanning and Tracking Devices
  • Professional repeaters
  • Smartwatch
  • Webcams and others


Partial blocking of such signals is possible:


  • Communication and Analytics Solutions
  • Mobile phone trackers
  • Mini Pocket Router
  • Camera and more

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