Slim 5000 Mah Powerbank + Protective Case For Xr/xs Max. Use Them Separate Or Together By Magnet. Protective Case For Xr/xs Max Full-edge Protection - Drop-proof Anti-slip High Capacity & High Density Polymer Battery Cell - Designed To Extend Continuous Use Time Without Getting Hot Qi Wireless Technology- The Case And The Powerbank Can Be Combined Together By The Built-in Magnets And The Xr/ Xs Max Can Be Charged Wirelessly Made Of Abs+pc Fireproof Materials Which Is Thermalesistant And Shockproof. Overcurrent Short-circuit Over-discharge Overvoltage Under-voltage Surge And Leakage Protections