You can configure your signal blocker to block only text messages or emails, or even all features of your phone. However, emergency calls to 911 are always activated. The signal jammer works very comfortably. You don't have to suppress all signals on the phone, but they work when the engine is running or the vehicle is not parked. As a result, you can still call for help in the park or in a car accident. The device can also set only what it will do. You can configure your device to block only SMS or email, or even all features of your phone. However, emergency calls to 911 are always activated. Therefore, your phone will not prevent you from seeking help in a dangerous situation.
