Portable Cigarette Case Mobile Phone Signal Jammer Built in Antenna

This portable cell phone jammer can keep you from being tracked by cell phone signal tracking systems. It is also good for schools, churches, conference rooms, hospitals and any other place that cell phones may be cause a distraction or interference. It comes with a built-in rechargeable Li-battery for 2-3 hours of signal jamming. This jammer is designed to block all GSM, CDMA system signals and come handily disguised as a cigarette packet to go undetected by others. Notices With built-in antenna and insulation of per Antenna, you can turn on at any time; the Insulation of per antenna can make it work more efficiently When you put the device into your cigarette box, you have to take off the aluminum foil inside your cigarette box. Otherwise the jammer cannot work normally You can choose the cigarette holder by your actual request.(The charge will be a little added if you need the cigarette holder) Don't put the jammer into the water and fire to avoid using in a bad Condition, like over heat, too high voltage and high magnetism Any ruin and disrepair caused by incorrect operation and disassembly will be excluded the repair with free charge At a Glance High efficiency, Adopting super-high frequency and mini-power interference technolog Effectively making subsection, just interfering the downlink and no interception to the base station Extreme portability, the weight for machine by itself is 65g Low power consumption, It can keep constant work for 1 hours, powered by battery Have a good design for circuit.It maintains the stable operation condition with high integration Antenna: With Omni-directional antenna, and Insulate per antenna, it can work more efficiently Technical Specifications Working RF Frequency: CDMA: 850-894MHz; GSM: 925-960MHz; DCS/PCS: 1805-1990MHz; 3G/