Kit includes:Electric shaver x1USB charging cable x1Protective case x1brush x1|PX rated full body waterproof .One flush is clean,no dead endsKnife net opening and closing steps1. Open the knife net in turn2. Turn counterclockwise to open the center knife net3. Take out the center knife net upwards1. Install the center knife ring first2. Rotate the center knife net clockwise3. Turn off the knife net in turnNotice:Disassembly of the product head need pull out the cutter head vertically and be careful not to twist it out, otherwise the cutter head will be artificially damaged. We refuse to compensate for the product damage caused by this situation.