Why only now? Well, I have the benefits not recognized or seen. The charging terminals are easily accessible with the devices. The charger plugged with me eh permanently in the socket, fast to plug into the USB socket, finished. I have not really seen in a pallet sense, especially since I so anyway need a socket, the plug is merely "shifted".
But now I have to say it's really really comfortable. I have the DT-900 lying on the desk and put the 920/930 only briefly, the charging light indicates that the device loads, the device is also a confirmation signal, ready - and really a relief.
Seen a nice piece and for the "more" in convenience and not really expensive. A star deduction from me it though, because it was omitted on the pallet itself on USB. USB was yet therefore introduced, because it should / will be the default. But no, here you have one of these old Nokia charger connections, which establishes the connection of power outlet for charging plate. If someday the plug broken, I can not even give any hernehmen a USB cable, but use a special Nokia! Although it is a cable attached, but how long does it mean?