How does a Bluetooth Proximity Switch work?

In this video i review this Bluetooth Controlled Proximity Relay Switch. This is a great device for the hobbyist that likes to play around with electronic projects like me. Using this device you can control anything you want to over a bluetooth connection using just your Smart Phone.
#bluetooth #proximitysensor #autotechnology

[@tinkernaut7202]

Can the module set a distance trigger?

[@SHORTwithTECH]

@tinkernaut7202 yes but the distance would not be adjustable