How to reduce the range of bluetooth (bluetooth)?

Question

Android

How to reduce the range (radius) of bluetooth (bluetooth) in a smartphone on android (android)?

Answer 1

https ://stackoverflow.com/questions/58091787/reduc... As a user, you cannot do this.
The functions mentioned in the link are for working with low-voltage devices. The phone can interrogate them and / or emulate them https://github.com/kshoji/BLE-HID-Peripheral-for-A...