Shenzhen Lanshen Communication Technology Co., Ltd sinceits inception in 1998,oneadhere to customer first, the productfirst,goodafter-sales servicebusiness principles, and now,we producemobile phonesignal jammersand GPSjammersWireless VideoJammerproducts have been widelyappliedineducation, government, security, military,theater, police, prisons and otherindustries, andthere are plenty ofwireless videojammers,cell phonejammers, portablecell phone signal jammers,portable GPSjammers, GPSjammersexported toCanada, Spain, New Zealand, Hong Kong andTaiwan and other countriesand regions.