- Casio AP-S450BK digital piano; 88 weighted keys with hammer action (Smart Hybrid Hammer Action, hybrid material made of spruce and plastic); 26 sounds with Multi-Dimensional Morphing AiR sound engine; layer; split, duet mode, transpose; songs: 60 (music library), 2 (demo); polyphony: 256 voices; Visual Information Bar; midi play/recording; audio-play/recording (to USB); effects: 4x Hall Simulator, 8x reverb, 2 levels surround; compatible with CASIO Music Space App, instrument designed in cooperation with C. Bechstein; bluetooth midi & audio (with WU-BT10); connections: 2x headphones/line out 6,3mm stereo jack, USB to host, USB to device; 3-way pedal unit (Damper, Soft, Sostenuto); speaker system: 2x 20W; delivery content: AP-S450BK, WU-BT10, music rest, power supply (AD-E24250LW); dimeneions (W x D x H): 1393 x 299 x 866 mm; weight: 37,6 kg; color: black