Yamanote Line e231-500 with sound?

[Super]

That does look different for sure. Has the trailing car with sound permanently coupled to the opening door middle car also with sound. Could this be a Limited release. Hopefully one of our experts (sorry not me) on these Japanese commuter trains can help with the info. GerisPlarail1 really likes these and knows quite a bit however I couldn't find one on his web site although I may have missed it. http://myplaraildepot.weebly.com/