1. Anti-radiation: Use the mobile phone to install the shielding bag to prevent the electromagnetic radiation of the mobile phone itself from harming the human body, but it does not affect normal communication. It is favored and loved by pregnant women to ensure the healthy growth of the fetus. 2. Shielding signal: Put the mobile phone into the shielding bag. When you call the mobile phone, you will hear the message "The user you dialed cannot be connected temporarily, please dial later" or "The mobile phone you dialed is not in the service area". 3. Anti-information leakage: Put the mobile phone into the shielding bag, others can't track and locate you through the mobile phone; you can't steal the conference content through the mobile phone, and can't steal or destroy the information in your mobile phone. 4. Anti-degaussing: All kinds of memory cards and electronic products with storage media are placed in the shielding bag to prevent degaussing, protect the data information stored therein, avoid the interference of electromagnetic fields, and prevent data loss. If the bank card is placed in the shielding bag, the signal of the mobile phone can be prevented from degaussing the bank card, thereby avoiding the trouble of eliminating the tape. 5. Eliminate static electricity. Please Note: There are two pockets within this wallet case, the cellphone signal will be blocked only when you put it into the inner pocket and the case needs to be closed at the same time.