I recently bought one of these: https://www.sony.com...n/nw-a40-series
and am looking at buying either these: https://www.sony.com...phones/wh-h900n
or these: https://www.sony.com...ones/wh-1000xm2
Of course, they all require charging. Via USB. Either desktop or laptop. I only have a desktop.
Which is fine when I'm at home, obviously.
But I want to know if I can charge them using the wall adapter that I use for my phone?
Or even better, can I use the power bank I carry with me?
Now, I did ask Sony first. But they gave me the helpful answer of, basically- you can, but we don't recommend it. But they didn't say why. And I certainly don't know enough about electronics to understand.
Can anyone at least enlighten me as to why it would be a bad idea?