✿【Military Conductive Material】20% copper nickel fabric serves as a military grade protective material, ensuring shielding against frequencies. Temperature from as low as -4℃ to as high as 85℃, faraday fabric retains its shielding effectiveness. Its frequencies shielding range of electromagnetic field and electromagnetic is from 10KHz to 30Ghz. Shielding efficiency reaches 80-90dB. ✿【99.99% Excellent Protection】Our high-shielding faraday fabric is meticulously crafted using a combination of copper, nickel, and polyester. It efficiently blocks wireless frequencies, safeguarding you against RF signals such as WiFi, GPS, Bluetooth, RFID, and NFC. Faraday fabric is a powerful conductive material that can be used to shield electromagnetic fields (EMF) and electromagnetic interference (EMI). ✿【Satisfactory Practicality on Various Occasions】Faraday fabric offers reliable protection against high frequency electromagnetic radiation from sources such as industrial equipment, communication towers, and household appliances. and it's not just for personal use - this is the same material used by military and law enforcement to block signals from cellphones, WIFI, bluetooth, and GPS. ✿【Easy to Trim】The thin and flexible nature of our fabric makes it convenient for daily use. it can be easily incorporated into existing products for everyday protection against electromagnetic radiation. Versatile fabric is perfect for crafting smart meter emi shields, wireless router covers, anti-credit card skimming wallets, anti-theft car key fob bags, phone pouches, and laptop protective bags. ✿【Protects the Household】More and more homes are using these ultra-useful shielding Faraday fabrics to protect the family against exposure to undesirable electromagnetic radiation. Disruptive radiation may come from smart meters, laptops, TV screens, mobile phones, power outlets, routers, microwave ovens, nearby cell towers and so much more unsuspecting devices and appliances in or near homes.