5 Band Cell Phone Signal Jammer Built-In Antenna 3G / GSM With Cooling Fans

2. Places where using mobile phones is prohibited such as Service Station, Security Services, Military Units, Border Patrol and Drug Enforcement, Customs, etc.

Features

2.1 Can choose to remote or local use, humanisticly operate.

2.2 The mobile phone signal isolator is made up of up-to-date paste components and integrated circuits.

With advanced performance, it is easy to install and use, and can work continuously for a long time.

2.3 As the manufacturing process strictly follows ISO9001 quality system, the device works stable and reliable.

It is an ideal, reliable security product, which can be used to strengthen information security, and protect safe

production and protect the environment at the same time.

3.5 Slow start-up circuit can avoid sparkling caused by mechanical switch.

Main functions

1.-channel type can efficiently provide shield for mobile signals from CDMA, GSM, DCS/PHS,3G(can choose),GPS, WIFI, walkie talkie /wireless earphone

2.It only shields the signals from mobile phone,WIFI, GPS, walkie talkie /wireless earphone and does not affect the normal operation of other electronic devices;

3. Generally, please use your mobile phone at the places more than 200 meters away from the base station;

4. switching on, it can work stably for a long time;

808JJJ pictur for reference as below: