N questions about the use of Sony NW-S638F (Japanese version). Please answer it with experts~

If you press and hold the shutdown option, the power will actually be turned off only after 24 hours (it can be said that long pressing is just standby). After turning off the power, the walkman logo and Every moment will be displayed when the phone is turned on. has its music startup interface. Today's Sony is like this, it's called one-click standby

Supports mp4 and nothing else

To save everything, you must use sonicstage, which is officially available for download from Sony.

Because the Japanese version of the machine is NW, most of the Chinese models are NWZ and can be dragged directly

The included base is used with other external devices, such as speakers

That function is random, divided into two types, all random and random by time

I don’t have the manual. If you want to ask me, you can add me 472845214