Thank you @ROSEHAN for the following (re: post Powering off when connecting cables - RS130 - #4 by ROSEHAN)
Powering off RS130
When RS130 is turned on and you lightly press the power button, it goes into standby mode.
If you press the power button for more than 3 seconds, the Power OFF button appears on the screen. Pressing the Power OFF button completely powers off the RS130.
If you want to check whether your RS130 is in standby mode or completely powered off, you can make the clock screen appear in standby mode.
RS130–>Settings–>Display–>Always on display–> Select the clock you want. Then, in standby mode, you will see the clock you selected.