secret camera; hidden camera

establishment, foundation, setting up (a business etc.) / installation (of equipment)

set up, establish, found / install, put in, erect

that which is hidden / that which is protected from outside / (clothing) pocket

to hide, to conceal

room (of a house or hotel), chamber, apartment, flat / (sumo) a stable where rikishi live and train together under a shisho oyakata (stable master)

camera / video camera / movie camera / surveillance camera

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend