4 octaves (49 keys), not to touch the piano, a range of 100 sounds trs poor quality, a range of sounds that are worth 50 keyboards for children .. the dmonstrations are distressing, no output for pedals, just a headphone output / ampli...etc ...
This is a piano composition that is used To verify its harmonies and its reverse .. or a keyboard rpeter .. not a keyboard in concert and it's even less of the pro gear ....
But for the price, it is what it's worth .... (About 150 euros)
For professional use I would say that it is the 2 10 but for amateur use / composition / repeat I will put on 5 / 10

UTILIZATION

It is extremely easy to use in less than 5 minutes we know it by heart ..... even without a manual ....

OVERALL OPINION

I use it for 2 years To verify the harmony of my compos ... etc. .. and also for repeated ...
DSIR but I pass the following box and purchase of professional equipment ..
the interest of the piano is that light that is transported across ... etc
TOC ngatif c mank touching the piano, the key Mank (4 octaves!).
If you want to use kom I used for the purchase price in the standard c ...
but if you want iron bercy c mem not bother ...