The GIA Cell Guard Case has been designed to help support your body’s natural resistance to the stress-related effects of electropollution (EMR) exposure, as well as reinforce your body’s resilience to energy disruptors. The innovative technologies powering each Cell Guard Case are now available for the following Cell Phone models: iPhone 7s, 7s Plus, 8, 8 Plus, X, XS, XS MAX, XR, SE, 11, 11 Pro, 11 Pro Max, 12 Mini, 12, 12 Pro, 12 Pro Max, 13 Mini, 13, 13 Pro, 13 Pro Max // Samsung S7, S7 Edge, S8, S8 Plus, S9, S9 Plus, S10, S10+, S10E, S20, S20+ Note 8, Note 9, Note 10, Note 10+, Note 20, Note 20+, S21, S21+, S21 Ultra. The MRET Technology in the Cell Phone Case lasts 2 years.