Original sentence: Many people leave their card inside their handbags or briefcase and simply pass their bag over the reader.Physical contact is not required, and the card need not even be taken out because the reader can penetrate through material.The Octopus card uses radio frequency identification (RFID) technology so that users need only hold the card in front of the reader
Edited sentence: The Octopus card uses radio frequency identification (RFID) technology so that users need only hold the card in front of the reader, without taking it out of handbags and wallets