Hotel key card

1, the room card must be carried with you, and the room card is one of the evidences to prove that you have the right to use the room;

2. Some low-level hotels adopt floor shift system instead of room service center system. In other words, if it is a floor shift system, there are full-time waiters on each floor. As long as you provide something that can prove your identity, such as deposit slip and check-in registration form, you can ask the waiter to open the door for you, so it doesn't matter whether you take the room card or not, just to get electricity.