The high power phone signal jammer blocker can block all cell phone frequencies,including GSM,CDMA,DCS,3G,4G.Moreover,you can buy the jamming frequecies WiFi and GPS,or the UHF/VHF frequency jammers. This desktop powerful mobile jammer can be used in the school examination room,court,hospital and office etc.The radius of the jammer is in the range of 2-50 meters depending on the communication signal strength.With a high heat dissipation performance,it can work for a long time stablely.

Applicable places: - Church : Clear cell phone signal noise and maintain the solemnity of religious sites.

- Library : Keep quiet in reading and studying.

- Theater : Clear the noise and keeps the audience interested in the show.

- Hospital : It can prevent the harm from using mobile phones to the human body and the malfunction of medical equipment.

- Court : Maintain the solemnity and sacredness of the court.

- Military heavy land : Prevent the leakage of military secrets.

Product advantages: - The device is mainly use AC power (AC220V). We have made different power adapters for different countries. Therefore, it can be used globally.

- Adopting efficient heat dissipation technology, built-in two cooling fans, the equipment can work for a long time without much heat, and always in good working condition.

Jamming Frequencies: - CDMA : (870 - 880MHz)

- GSM : (930 - 960MHz)

- DCS / PHS : (1805 - 1918MHz)

- 3G / 4G : (2010 - 2145MHz)

- 315MHz / 433MHz

- VHF : (135 - 174MHz)

- UHF : (400 - 470MHz)

- GPS : (1570 - 1580MHz)

- WIFI 2.4G : (2400 - 2500MHz)

Other Parameters: Jamming Radius: 2 - 50 meters (depending on the signal strength in the given area)

Power supply: AC power adapter

Weight : 2.7kg

Dimensions : 140 x 50 x 305mm

Packing Lists: 1 * Desktop signal jammer

1 * AC power charger

6 * Antennas