how do chrisjenlifestyle automatic soap dispenser work

1
(No Transcript)
2
(No Transcript)
3
(No Transcript)
4
(No Transcript)
5
(No Transcript)
6
(No Transcript)
7
Chrisjen Lifestyle The Soap Tap 
https//www.amazon.com/dp/B07R8Z47SX
8
(No Transcript)