NOTE： Due to the weight of this item is very heavy, we will send 2 separate packages to you, please note that, the two packages maybe don't delivery at the same time. For installation: a simple installation is neededSpecifications: 88 Full-sized Hammer Action Keys Digital Piano Color: Black Display Screen: LED Screen Keyboard: 88 Keyboard DREAM Source 80 Demo Songs 680 Tones 64 Max Polyphony 600 Rhythms 3 Pedal System Product size: 141.5 x 35.5 x 77 cm With headphone jack With recording playback function Weight：35kg Package Included: Digital Piano x 1 Furniture Stand x 1 3-Pedal Unit x 1 Power Adapter x 1.