A cell phone jammer is an instrument used to prevent cellular phones from receiving and transmitting mobile signals to a base station. The jammer effectively disables cellular phones in the area. Jammers block cell phone use by sending out radio waves along the same frequencies that cellular phones use. This causes enough interference with the communication of cell phones and the towers to render phones unusable.
A mobile phone signal jammer is used to stop cell phone use in the building. The jammer also stops Internet use through Wi-Fi network and even blocks Bluetooth connections. The cell phone signal jammer also puts an end to text messaging, so students cannot SMS each other, while the teacher is trying to teach.
A cell phone jammer has three antennas, one each for GSM, 3G and DCS/CDMA. The jammer works by broadcasting a white noise signal or a wave bubble. First, you have to charge the jammer for at least an hour. Then, you have to plug in the jammer, and turn it on, so cell phones in the proximity will have no service available and all calls are lost. Some cell phones switch to searching, which means their signal is knocked out. When you turn off the jammer, the signals normalize.
* Clinics & Hospitals, During personal meetings with doctors, politicians, VIP For ICU & Operation Theaters.
* Conference Room, Hall, Law Court, Library, Exam Room, School, Theater, Hospital
* Gas Station, Gas Filled Station, Oil Field, Oil Depot
* All the area where using mobile phone is prohibited such as Government, Military, Finance, Security, Public Security .. etc.
* Applicable to GSM/DCS/PHS/3G frequency brand,
* Extinguish all following brand signal transmitting
* GSM 930~960Mhz
* DCS 1805~1920Mhz
* 3G 2110~2170Mhz
* Cover range: 0.5~10M (Depending ISP's network condition)
* Output power: 15W
* Built-in Li-on battery: 1500mAh
* LED Light Working Condition Indicator
* Easy Installation & Operate
* Power consumption: 0.5W/h
* Power charger: AC 110V~220V, 5V Output
* Power voltage: 5V
* Working time: 1~2h
* Weight: 150g
* Dimension: 95x45x18 mm