Thank you for getting in touch. The NP-12 features a standard home keyboard action. This means that it's not weighted and so doesn't feel like a piano.
It does, however, feature touch-sensitive keys so (like a piano) the harder you press them, the louder the sound will be. This is essential for playing with expression.
For a portable instrument that has both a weighted action and touch-sensitivity, please look at our P Series portable pianos: