✿【Highest Quality Components】Faraday cloth is made of polyester, metallic copper and metallic nickel. Copper nickel is a popular insulative metal due to its high electrical conductivity and effectiveness in signal reduction. Surface resistance: below 0.05Ohm/sq, average attenuation of 80-90dB from 10KHz to 30Ghz. Effective shielding of electromagnetic radiation, shielding value reaches 99.99%. ✿【RF Signal Blocking】High shielding faraday fabric is made of copper+nickel+polyester that efficiently blocks wireless frequencies for blocking RF signals such as WIFI, GPS, bluetooth, RFID, and NFC. This guards you against potentially harmful RF signals, and enhances digital privacy! Keeps you away from harmful substances from cell phones, laptops and most other household appliances. ✿【From Secret Operations】The need to preserve, protect and extract digital information in devices and technological privacy makes the Faraday Fabric a must for government and military organizations. The fabric shield effectively secures communication and enhances digital isolation during discreet operations. It blocks electronic signals, defends against emps, and is ideal for signal-proof rooms or tents. ✿【Cutable for DIY Various Products】Different sizes EMF protection fabric for your choice of needs of the product you want, if you are not good at making, you could just cover the faraday protection fabric over it. The fabric could be directly used as faraday blanket, phone case or computer covers, or made as wallet, gravida clothes, shielding tent, curtains and so on. ✿【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.