The pianist for an intended appearance did not agree with this piano (although dynamic stop, but no hammer action) that I had not properly assessed, so I could use it but unfortunately not; for the price but the unit is unbeatable !! In addition, the NP-31 is very easy to transport, even battery operation with 6 standard (Mignon) batteries is possible. Super for busking.
The refund of the entire amount went smoothly, thank you!