There is a hidden camera in each one of these body wear cameras. Receivers are included with all wireless models. Options vary, some have a micro-vcr with monitor, some come in 434mhz, 900mhz, and 2.4GHz. Some of these body styles hidden cameras also come with out long range commercial grade 15 mile line of sight transmitter. The hard-wired versions on all of these can connect directly to a vcr or tv. The briefcase and larger items can accomodate our mini vcr to allow remote control operation.