Yamaha PSR-E473 Keyboard, 61 keys with touch response, 820 sounds, 290 styles, polyphony: 64, pitch bend wheel, motion effect button and 2 live control knobs, compatible with GM/XGLite, effects (reverb, chorus, master EQ, DSP1: 41 types, DSP2: 12 types), One Touch Setting, compatible with Style File Format (SFF), Groove Creator (35 grooves, 5 sections), 30 preset songs, midi recording (5 melody + 1 Style/Groove Creator), SMF format 0+1, USB audio player & recorder (Wav, 44,1 kHz, 16 bit, stereo), Quick Sampling (44,1 kHz, one shot or loop, 4 user samples, sampling time approx. 9,6 seconds, sampling input: aux in, mic input, usb audio or wav file), functions: dual, split, harmony (26), arpeggio (152), articulation, registration memory, metronome, tuning (427 - 453 Hz), octave buttons, Melody Suppressor, connections: USB to device, USB to Host (midi + audio), aux in (3,5mm stereo jack), headphone output (6,3mm stereo jack), audio out (2x 6,3mm jack), microphone input with vocal effects, sustain pedal, speaker system 2 x 6W with mega boost function, battery power possible (6x AA, not included), power supply (PA-150) and music rest included, dimensions (W x D x H) in mm: 992 x 404 x 136, weight: 7 kg, color: black