Sharp Eyes store in Kolkata offers the advanced cell phone jammer using which you can easily obstruct the mobile signal and prevent any unwanted use of cell phones at your place These are used mostly at educational institutions like schools colleges and hospitals etc where silence is the first priority This jammer is very light weight and small in size You can easily hang this jammer at a place where no one can find it It is very easy to use and it works effectively in the 10-30 meter radius This cell phone jammer comes with a warranty of one year For more details http www mobilejammers net cell-phone-signal-jammer-in-kolkata html Contact Us Mob 91-9891453839 91-9810211230 011-43215136 Email spysharpeye rediffmail com spysharpeye hotmail com