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• Radiation Protection: The use of mobile phones to install shielding bags to protect the electromagnetic radiation of the mobile phone itself from adverse effects on the human body, but does not affect normal communication. Block the Signal: Put the phone in a shield bag. When you use a mobile phone call, you will hear the message "The user you selected is temporarily unable to connect, please call later" or "The mobile phone you selected is not in service. Prevent Information Leakage: Put your phone in a shield bag so that others can't track and locate you through your phone. You cannot steal the meeting content from your mobile phone. Anti-Degaussing: All kinds of memory cards and electronic products with storage media are placed in the shielding bag to degaussing, protecting the data information stored in it, avoiding interference from electromagnetic fields. Card Protector: If the card is placed in a shielded bag, it can prevent the signal from the phone from degaussing the card, thus avoiding the trouble of tape and eliminating static electricity.