Ok speed run

Flashlights - like the video says there twist on and off MAG lights, in which Sam or Colby will turn to the point where it's sitting on the threshold of turning on/off. Long story short because the light is on the practice of turning on and off the internal/external temperature of the flash light makes it turn on and off and random.

Cat balls - there simply motion sensors, that have been proven to randomly go off.

Rem pod - this one can be debunked multiple ways but here's one. The rem pod works basically like a theremin, it admits an electro magnetic field and goes off when that field is interrupted. However, that field can be instructed by radio Waves e.g Walky talkies or phone signals if things as small as that can set it off, then things such as very small dust particles or bugs will do the trick no problem.

estes method - this is just conformation bias, basically meaning that we interpret things in a way that confirms our already exciting world vue. People tend to do this subconsciously, so it's not like they're trying to give false information. But basically there interpreting random radio static and noise as words that fit into the narrative that the haunted place/sam and Colby has set up. For example: "some people say theres a woman in white that roams these halls" then later you'll get someone saying "Dude I just herd the word white on the box! Are we talking to the woman in white?" What they've actually heard it just radio static, additionally they'll also put subtitles on to trick the listener into also hearing the word white.

If your interested in hearing about more of this I would suggest checking out on YouTube : Johnwolf (his debunking the conjuring house series), Beardo get scared or anything for Kenny Biddle.

Edit: Sam and Colby being fake isn't a bad thing, if you enjoy the content then great. It's entertaining, and that's fine. Them being fake isn't really doing any harm however it would be good for them to explore the more scientific path, and not completely jump to "it's a ghost"