A phone jammer transmits low-powered radio signals to cut off communications between cell phones and cell base stations.Since phone jammers actively broadcast radio signals, they may or may not be legal to possess or operate based on the specific laws of the area one is in.Interested in special design or modifications? It's not hard to understand.

If you want to know the frequencies of your country, we can offer you some help:

When President Bush visited London in November 2004, it was reported that British police considered using jammers to protect the president's motorcade through London.

With Car storage battery Charger DC12V can be used in car. This is the latest cell phone blocker for business. With DIP switch, can turn on/off any signal band without affect other bandsThis 4-wire pocket jammer is the latest miniature hidden 4-antenna mobile phone jammer.

Design small and exquisite, easy to carry. It has a very large jamming range. On both sides of the inlet, the outlet symmetrical layout of the formation of convection, two silent fans will heat out to ensure that the host work stableThis cellular signal blocker has a very convenient single frequency switch. Effective prevention by GPS satellite positioning tracking, to protect your whereabouts of privacy and confidential informationThis mobile network blocker device can cut the full frequency signal of phone and WiFi signal within 50 meters of the radius. Can adjust or turn off any single band without influencing the other bands operationThis is a new 8-band portable military diy cell phone signal jammer. It can jamming 3g, 4g, WiFi, GPS and other signal. Some education institutions and disciplinary agencies will also purchase the product. Output power of each band can be adjusted by knob and jamming range can be regulated. It can effectively jamming 5.8G and other cell phone signals.

The bombs that blew up commuter trains in Spain in March 2004, as well as blasts in Bali in October 2002 and Jakarta in August 2003, all relied on cell phones to trigger explosives.

This 8 bands desktop cell phone jammer has a jamming distance of 50 meters. It can be used to protect VIPs and groups, military security forces, SWAT teams, Bomb squads, counter-terrorism forces, anti-drug forces, anti-riot forces, anti-explosion operations teams, checkpoints, hostage negotiations, border controls, cars, trains, buses and more locally,This 8 Bands Portable mobile phone frequency jammer,can jamming all types of Android phones, Tablets, Smart Phones, iPhones, Windows phones etc. 20+ years of industry experience makes us the specialists you can trust. 8W output power. The device looks like a portable power source, can ensure that you are not easily perceived by others during your use. It has very high power, the jammer range is large, the jamming signal output is stable. Cell Phone Blocker Mini Model TSJ-Blocker-Mini This high quality signal jamming blocker will fit in the palm of your hand, or comfortably in your pocket. Many times we need to keep quiet. It has been widely reported that a cell-phone jammer thwarted an assassination attempt on Pakistani President Musharraf in December 2003. At this time we need to use the

It easy to carry, Pocket-size, Hang or wear on the arm or belt.

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