Yamaha YDP-164 R Arius, Digital Piano, Graded Hammer 3 (GH3) keyboard with 88 keys, Synthetic ebony and ivory surface, Yamaha CFX Piano Sound, Intelligent Acoustic Control and Acoustic Optimizer, Stereophonic optimizer, 192-Voice polyphony, 10 Timbres, 4 Reverb types, Dual function and Duo mode, Metronome, 2 Track recording (1 song), 10 Demo songs and 50 piano songs, 3 Pedals, Keyboard cover, USB to Host, 2 Headphone jacks, Amplifier: 2x 20 W, Dimensions (W x H x D): 1357 x 849 x 422 mm, Weight: 42 kg, Colour: Rosewood