The Yamaha P105 88-Key Digital Piano with Graded Hammer Action (White) is an 88-note, weighted-action piano that offers useful features for everyone from beginning players to professionals. The unit is equipped with Graded Hammer Standard (GHS) action, which gives it a similar feel to an acoustic piano.
The P105 PureCF sampled piano sound and internal stereo speakers make it ideal for practicing. The keyboard offers a Split mode and also an innovative Duo mode. The latter lets two people play simultaneously on the keyboard, with each having his or her own middle C.
Another innovative aspect of the P-105 is the Intelligent Acoustic Control feature. It's essentially an adaptive EQ that changes the tonal balance based on the keyboard's volume setting, making sure that the P-105 sounds as good as possible at any level.
In addition to its built-in speakers, the P105 features line-level Aux outputs. You can use these to connect to a mixer or other external device without cutting off the speakers. A USB port gives you the ability to interface with a computer. In conjunction with Apple's optional iPad Camera Connection Kit, you can even connect with music apps such as Yamaha's Piano Diary and NoteStar.
You also get 10 built-in styles for practicing with, including boogie woogie, stride piano and ballad arpeggios. A built in Rhythms feature gives you 10 drum patterns to play with, offering a great alternative to a standard metronome.