Key Features The CFX Premium Grand Piano Voice recreates the power and tone of Yamaha's flagship CFX concert grand piano Graded Hammer 3 (GH3) with synthetic ivory key tops add a tactile surface to the white keys, which absorbs finger moisture and prevent slipping. Virtual Resonance Modeling (VRM) allows for vivid and richly-varied expression to reflect the limitless number of factors that create the sound of a concert grand piano. Key-off samples deliver the delicate change in sound the instant the damper falls back to the string. Full Dot LCD Display allows for smooth navigation of the instrument's features and functions. Stereophonic Optimizer adjusts the spatial distribution of sound in the listener's headphones, creating the sensation that sound is coming directly from the piano, rather than from the headphones. Drum Rhythms are great to perform with and also put the fun back into practicing as they are a practical alternative to a metronome. Duo mode splits the keyboard into two halves, each with their own "middle C" for practicing with a partner The Digital Piano 3-year, carry-in warranty protects you from defects or malfunctions not resulting from misuse. Simply return the product to your dealer, who will manage getting it repaired or replaced for you. 1/8" AUX input takes output from a portable music player, iOS device, mixer or computer and uses the instrument's speakers to play back the audio. 256-note polyphony allows you to play many notes simultaneously without any drop-outs An on-board, 16-track recorder allows you to create your own songs using multiple sounds for simultaneous playback. Acoustic Optimizer physically adjusts the acoustic flow by using a special design and position within the instrument to control resonance and enrich the overall sound. The USB TO HOST port allows players to connect to and interact with a wide variety of educational, creative and entertaining musical applications on a computer or mobile device. MIDI connectivity allows the instrument to be connected to other MIDI devices, such as external tone modules, sequencers/computers and portable devices.