K408 Discreet RF Jammer (10 meters)



K408 is able to block the following frequencies:


  2. GSM900/1800

Output Power: Total 1.2W
Range: 1-10 meters
Power Supply: USB 5V IN or OUT
Cooling System: Low power communique design
Battery: 2000mAh
Battery Life: 100 minutes
Product Size: 106x75x23 mm
Product Weight: 100g
Package Includes:
Device x 1, USB cable x1


Antenna Information

Specifications for Each Channels

The specifications provided for each channel are based on the item for the USA as a reference. As different countries operate on varying frequency ranges, we will fine-tune the frequency range according to your country before shipping to ensure the effectiveness of our products.


Frequency Bands Output Power(W)
Jamming Radius
GPS/GLONASS L1 300mW 1-10 meters
GPSL2L5 300mW 1-10 meters
GSM 900 or CDMA850 MHz 300mW 1-5 meters
GSM 1800 or GSM1900 MHz 300mW 1-5 meters

Hidden Antenna


10 meters



Output Power


Turnaround Time

Please noted that all our products are made to order. Once your order is confirmed, it takes us about 5 business days to produce your item. During this time, we rigorously test everything to make sure it works perfectly in your country. After the testing phase, we hand it off to the fastest courier service available, which usually gets your order to you in 5 to 7 days. So, you can expect to receive your order within 10 to 12 days after confirmation


Can you ship your products to my country?

Absolutely! We use international shipping, so no matter where you are on the planet, we've got you covered.

Which courier do you use?

We primarily use DHL. If DHL doesn't serve your area, we'll switch to UPS or FedEx.

How can I track my package?

You'll get an email with your DHL tracking ID around the sixth day after order confirmation. You can use this ID to track your package on the DHL website.

Is the packaging discreet?

Yes, it is. The outer packaging will be labeled as containing other electronic products.

Where do the products ship from?

All orders are shipped from Hong Kong.

I didn't receive my order.

This is rare, but if it happens, just reach out to our customer service team and we'll sort it out for you.