also, mine unexpectedly came with a port for batteries to be put in (by the laser), still cant get it to work ( may be dead batteries). (1) it is not, "believe and pray." i'm also too lazy to watch the credits at the end of the movies so cut me some slack. not the mug sitting on the back corner of a shelf. in reality, the cause of this resident's heat loss was determined to be as a result of wooden boxes that had been placed over her radiators as makeshift heat shields by either the previous management or herself. 