Traditional Culture Encyclopedia - Hotel accommodation - How to copy the key card of the hotel chain along the way

How to copy the key card of the hotel chain along the way

cannot be copied. The hotel key card can't be copied personally, but he has it at the front desk of the hotel. Special chip to read, input the chip on the computer, and then copy one card after another. In this case, only the front desk of the hotel can do it. They have card readers or machines and computers to operate.