what can block a wifi signal

.... Product Introduction This portable handheld er can effectively within a radius of 5-20 meters. It has two mode...

... Jammer Manufacturer Advantages: 1. Good cooling system with cooling fan inside; 2. Can adjust or turn off any single band without influ...

... Jammer Mobile Phone Device 250 Watt Jammer Description: This jammer GW-J265DW is a waterproof model. Using high qu...

... Jammer, a wireless interrupter, wireless network disabler, and wireless interrupter, all in one. This versatile device is...

Product Description: jammer that can only the 2.4G, but also at the same time can other frequency bands at the same t...

Adjustable 8 Bands 20w High Power Wifi Signal Jammer Blocker Cell Phone Signal Jammer Supplier With 1 Year Warranty! Frequency Can Be Customized! Spec...

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...Jamming range 5 to 20 meters(@-75dbm,depends on strength in given area.) *Hand-haled design,plam size,similar to cell phone or Walkie-Talkie...

... frequency bands at the same time? Then this 5W Powerful All Jammer (2.4G, 4.9G, 5.0G, 5.8G) that you are viewing here just owns the a...

... jammer 2G 3G 4G 5G with bigger hot sink & battery This 8 antennas multifunctional hand-held portable cell phone jammer i...

... Jammer GSM CDMA 3G 4G 1. Introduction EST-808P mobile phone jammer, is able to GSM/CDMA/AMPS/DCS/PHS/3G(WCDMA)/4G, 2.4G WI...

Four Antennas Portable Jammer for Mobile Phone s And Wi-Fi/GPS Description: Portable Black color 4 bands cell phone jammers with 4pcs Omn...

..., 2g/3G/4G and LOJACK GPS Model: CKJ-2001SN8 Color: Black Basic Specifications Jam Type:1: CKJ-2001SN8: Full Bands Mobile...

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Product Description: The modern world is saturated with waves of communication: cell phones, Wi-Fi networks, and GPS signals are ubiquitous, providing...

...,low frequencies like UHF,VHF as well as GPS . Do not hesitate to choose this mobile phone jammer with 12 antennas ...

Absolutely new modern service is available for you with a new GPS signals jammer - a GPS jammer which can block any GPS signal and actually make you p...

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