Box has been opened.  Redesigned from the ground up, the CDP-S100 redefines value in a digital piano. It's a perfect piano for students, hobbyists, or pianists who need grand piano sound and feel in a small space. Its scaled hammer action keyboard features heavier key weighting in the lower register and lighter weighting in the upper octaves, just like a traditional grand piano, along with simulated ivory and ebony key surfaces. More than 40% smaller than other brands' instruments, the CDP-S100 delivers piano authenticity in a slim unibody case that's barely larger than the keys themselves. Weighing only 23.1 lb. and capable of running on AA batteries, the CDP-S100 provides unprecedented levels of portability and convenience. A beautiful stereo grand piano sound is complemented by 9 additional Tones with adjustable reverb and chorus. Listen via the built-in stereo speaker system or practice quietly at any time with favorite headphones and the built-in metronome. Download the free Chordana Play for Piano app, and connect via USB to favorite iOS or Android device to make adjustments to CDP-S100, as well as play favorite MIDI files. The CDP- S100's USB port is class compliant, and can also connect to any Mac or PC with no drivers or installation needed. Includes power supply, music rest, and sustain pedal.