Fully integrated SILENT Piano system Non-contact Articulation Sensor + Optical Sensor System Key sensor type: Continuous detection electromagnetic inductive Damper pedal sensor type: Continuous detection optical sensor Shift/soft sensor type: On/Off detection optical sensor 12 playable digital voices Binaural CFX and Imperial Concert Grand voices for headphones 480 ensemble voices with 12 Drum Kits 20 rhythm patterns 256-note polyphony Recording formats: Standard MIDI, Audio WAV Supported file formats: Standard MIDI, WAV Compatible storage media: USB Flash Memory (up to 64GB) MIDI connectivity: USB TO HOST, Bluetooth Audio connectivity: USB TO HOST, Stereo audio IN x1 (mini stereo), Bluetooth Headphone connectivity: 1/8” mini stereo x 2 Data connectivity: USB TO DEVICE x 1, UD-WL01 (WiFi) Smart Pianist app compatibility Available models: b1, b2, b3, P22, GB1K Specifications as of 01/2023. Specifications subject to change without notice.