The Impact X is IP68 waterproof even without the protective cover fitted over the mini jack and USB connectors as well as the micro SIM slot. The micro SIM, micro USB and mini jack connectors are sealed on the inside, and they are waterproof themselves even without the protective cover. NB! Please make sure the connectors are dry before connecting a USB cable, inserting or ejecting a micro SIM-card, headset or charging the unit.