1. Why does the shielding range of the shielding device differ from the description described in the manual?

A: The shielding range of the shield is related to the electromagnetic field at the shielding site, and is related to the distance from the communication station. It is generally best outside of 200 meters. The manufacturer is tested in the general case, so the scope of the shielding will be a bit different.

2. Will the mobile phone signal shield have radiation, is it harmful to the human body?

A: Regarding radiation, as long as it is an electronic product, there will be radiation. Any piece of electrical equipment will have radiation. Just like the mobile phone we usually use, it is inevitable that there will be radiation around the ear every day. The country also sets a standard for mobile phone radiation. The radiation generated by our mobile phone signal shielding device is still lower than the national standard, and it is not every day. It is to be placed next to the ear, so there is almost no harm to the human body.