Made Of 600D Polyester. Conductive RFID Shielding Inner Liner. Blocks All Cellular, WiFi And Bluetooth® Signals, Including Incoming Phone Calls, Text Messages And Notifications While Sealed Inside The Case. For Complete Signal Blocking To Occur, Disconnect The Charging Cord From Phone Before Sealing It Up In The Case. All Voicemails, Text Messages And Notifications Will Appear After Removing Your Phone From Case. Eliminates Human Error While Driving By Providing A Physical Barrier Stopping The Urge To Check Your Phone. Fits Most Smartphones.