The black Yamaha P-115 Digital Piano 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 piano's PureCF sampled piano sound and internal stereo speakers make it ideal for practicing, especially with the most recent Grand Piano sound. 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. For ease of use, the voices of the sounds are printed on the panel.Another innovative aspect of the unit 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 piano sounds as good as possible at any level. A sound boost feature helps further refine your sound, and a speaker off feature makes it easy to mute the keyboard's built-in speakers.In addition to its built-in speakers with top mounted tweeters, the device 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 Digital Piano Controller app.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.Weighing less than 27 pounds, the piano is a portable solution for keyboardists on the go. It pairs well with the L85 matching stand and LP5A three-pedal unit.