Practice listening, just bring an MP3 player.
Because there are many students in an accommodation department, not only TOEFL students, but also various social workers, it is not safe.
Generally, teachers in New Oriental won't let you take the courseware, for safety and for observing the internal regulations of New Oriental. Teachers in other classes will upload materials to public mailboxes, but there is no precedent for the personal experience and classmates in TOEFL class.
A dormitory has at most two power supplies, and it is easy to overload the whole power outage with a patch panel, so charging itself is very troublesome.
Of course, if hotel-level accommodation and VIP classes are excluded, they are generally independent accommodation. Everyone is rich, and teachers will take special care of them.