One click folds this 88-key board from 50.5 inches down to a 25-inch case, which is the whole point of an 8.8-pound instrument built for travel. Open, it measures 50.5 by 9 by 2 inches, with white keys 5.4 inches long and black keys 3.4 inches, dimensions that keep the reach and spacing of a standard action. The semi-weighted keys carry adjustable touch response, and 2 stereo speakers handle the 1000 tones, 1000 rhythms and 150 demo songs on board. Dual keyboard, metronome, chord, transpose, record and tempo controls sit under the display. A microphone, sustain pedal, music stand, key stickers, carrying bag, adapter and USB cable all ship with it, so a busker or a dorm player has a complete rig out of the box. Color: Black; Material: HIPS and GPPS; Unfolded: 50.5 in W x 9 in D x 2 in H; Folded: 25 in W x 9 in D x 4.5 in H; Keys: 88 semi-weighted; White Key: 5.4 in x 0.9 in; Black Key: 3.4 in x 0.5 in; Tones: 1000; Rhythms: 1000; Demos: 150; Power Cord: 4.9 ft; Net Weight: 8.8 lbs; Package Includes: keyboard, microphone, sustain pedal, piano stickers, music stand, carrying bag, adapter, USB cable, guide