Why is the scope and characteristics of the product description different from the actual working time of the cell phone signal jammer? The field of signal shielding refers to protection against strong electric fields (distance between relevant communication stations). Generally 200 meters high. Provider testing has found that cell phone jammers are often somewhat inaccessible.

Is the radiation produced by mobile phone signal jammers harmful to health? Regarding radiation, we know that the radiation from electronic products can be large or small. Every electrical device emits radiation. The rest of our mobile phone signal shielding is far lower than the national standard, and it is not calculated in the ears every day, so it is almost harmless to the human body.

Why are some cell phones not protected by cell phone signal jammers? The signal emitted in the test room is not uniform and there may be weak points, so the shielding effect at these points will be different. Cell phones also vary in sensitivity. It can protect the signal frequency, and the frequency of the mobile phone is not within the frequency band filter.

When receiving a call, the phone signal will still be displayed. In fact, the illusion is that the phone is in offline mode. We use cell phone jamming devices that prevent cell phones from coming into contact with the outside world. The jammer itself generates a lot of heat due to heat generation, which is certainly disturbing. The effect is short-lived. It is recommended that you stop using cell phone jammers.