Not perfect demo and is very long, but it is the best we can have without having to start a car to go to the nearest showroom.
They demonstrated in four steps as followings
K1X alone
K1X+PS1
K1x+G1X
K1X+G1X+PS1
With sound of natural water flowing and musics.
https://youtu.be/zHfOKxkNkmg
Toga