PSU was working by the manufacturer - now it works!

This follow-up power supply has been revised by the manufacturer in December 2014 and adjusted for the kids Idena-CD player with polarity and plug length.
Now it works fine!
Be irritated not by older reviews.
The faulty predecessors we had returned and complained - the manufacturer has immediately refund the purchase price and free of charge send a modified according to our specifications Power supply us, which he re-offer back to our test here.
The power supply has a cable length of about 120 cm.
Electronic power supply - no noise or heat generation.
Nothing to complain about!
Finally, no more batteries.
Impeccable.