Technology: Sanxir is leader in cell phone radiation shielding is providing advanced scientific research into new classes of Nanoscale Graphene-based materials, which is a significant improvement over prior electromagnetic shielding materials. Certified and independent laboratory tested double shielding technology embedded in front flap blocks up to 98 percent of EMF and RF cell phone radiation without blocking the cell phone signal. Sanxir methodologies for shielding the cell phone radiation only use technologies block radiation which is directed towards the user’s body and will not cause the phone to increase output power. Double shielding material is used on the front cover only, Please keep the shielded front flip cover between your body and cellphone at all time, no matter if used in your ear, or carried in your pocket.