K306 12-Channel High-Power Jammer (80 meters)



K306 is able to block the following frequencies:

  • 2G, 3G, and 4G cell phone signals
  • GPS L1 - L5
  • WiFi (2.4 & 5GHz)
  • Lojack
Output Power: Total 86W,3-10W each band
Range: Upto 80 meters
Power Supply:
Battery DC24V and AC110-220V to DC24V adapter
Cooling System:
Aluminum alloy radiator, Build-in 3 cooling fans
Battery: Build-in DC24V Battery
Battery Life: 90 minutes
Product Size: 465 x 365 x 185 mm
Product Weight: 12 kg
Package Includes:
Device x 1, Battery Charge x 1, antenna x 12, AC Plug x 1


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.


Channel Output Port Frequency Range
Output power
1 GSM or CDMA 925-960 or 851-894MHz 40dbm / 10W
2 DCS or PCS 1805-1880 or 1920-1990MHz 39dbm / 8W
3 3G 2110-2170MHz 39dbm / 8W
4 4GLTE 758-821 or 700-803MHz 40dbm / 10W
5 4G WIMAX 2500-2690 MHz 39dbm / 8W
6 WIFI2.4G or 4G2300 2400-2500 or 2300-2400MHz 39dbm / 8W
7 VHF/LOJACK 135-175MHz 37dbm / 5W
8 GPS 1570-1610MHz 37dbm / 5W
9 GPSL3L4 1370-1390MHz 37dbm / 5W
10 GPSL2L5 1170-1280MHz 37dbm / 5W
11 WIFI5.2G 5100-5500MHz 35dbm / 3W
12 WIFI5.8G 5500-5900MHz 35dbm / 3W

12 Channel


80 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.