Is the Bluetooth charger in the hotel safe?

The hotel's Bluetooth charger is safe. According to relevant public information, the charger is essentially used for charging. Although some charging cables can be used as data cables, he only needs to connect two mobile phones from the charger itself, or plug in the power at the other end without revealing any private information. As long as the password is set for the mobile phone to prevent others from opening it easily, it is impossible to view the privacy inside the mobile phone.