Smartphones are very popular in life, with millions of mobile phone users for different purposes. However, mobile phones are not available in some places, and we need to use mobile phones as needed. One way to ban the use of mobile phones where they are banned is to use a cell phone jammer, and many customers are looking for mobile phone blocking devices. If you are looking for a way to protect yourself from your phone, we recommend using a portable jammer.
The blocking range of the mobile phone jammer depends on the strength of the local signal. The shielding radius of the mobile phone jammer is generally 5-40 meters, which is actually a large area. The most common signal interception devices block one to three frequency bands. For portable portable jammers, when fully charged, you can work long hours or use them in the car, which is very convenient.
Do not use your phone jammer during normal hours. The deputy director of the Center for Modern Education and Technology said he would use the jammer to build a standardized test room. Surveillance cameras and jammers are standardized laboratory equipment. The mobile phone jammer can keep the laboratory quiet, while preventing the use of mobile phones to ensure smooth and safe testing.