Medeli DP460K/RWForte Series,digital upright piano, 88 keys graded hammer action, triple sensor (GP3), 2 x 25 W rosewood,The Medeli DP460K is the bigger version of the DP420K. The DP460K offers more such as a larger polyphony, more sounds, a GM bank and the possibility to write data to a USB stick. The DP460K has a fully weighted pianokeybed. The keyboard is very playable for pianists of all levels. The K8 keyboard has 3 sensors which makes it even better to respond