-What's The Meaning Of Three Kinds Of Power Supply?

-Signal jammer most is pluging in 110V or 220V power supply.Signal blocker not only can charge the battery but also block the mobile phone signal.

-Signal jammer is built-in lithium battery,you can take our portable hand-held signal blocker to coffee shop or cinema etc...

-Car GPS signal jammer can use car power supply,connect the cigarette lighter.

-Callboost Portable Hand-held Signal Jammer Is Very Suitable For Car And Home.

-Callboost Signal Jammer Can Block What Signal?

-Hand-held signal jammer can block 2G 3G 4G WIFI for home use.Just tell me which one you want to block.Callboost can customize for you.

-Hand-held signal jammer can block GPS signal for car use,safe and reliable.

-Callboost Signal Jammers What Advantages They Have?

-Callboost signal jammers have CE/FCC/SGS quality certification,ensure good signal blocking effect.

-Callboost signal jammers made with the most advanced technology of China,far better than other jammers.

-Callboost signal jammers have one year warranty,Callboost will provide professional after-sales customer service to everyone.

-Signal jammer surface temperature may be up to 50℃,please stay away from low heat resistance things.

-Signal jammers are easy to install and easy to use. 

Send us inquiry to get code for checking the specifications.