Yamaha PSR-EW425, Keyboard, 76 Keys with touch response, 820 Sounds incl. premium organ sound, 290 Styles, 64-Voice polyphonic, Pitch Bend Wheel, Motion effect button and 2 Live Control knobs, GM/XGLite compatible, Effects (Reverb, Chorus, Master EQ, DSP1: 42 types, DSP2: 12 types), One Touch Setting, Style File Format (SFF) compatible, 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, Onehsot 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 Keys, Melody Suppressor., USB to Device, USB to Host (Midi + Audio), Aux input: 3.5 mm stereo jack, Headphone output: 6.3 mm stereo jack, Audio output: 2x 6.3 mm jack, Microphone input with vocal effects, Loudspeaker 2 x 12W with Mega Boost function, Battery operation possible (6x D, not included), Dimensions (W x D x H): 1200 x 404 x 136 mm, Weight: 8.3 kg, Colour: Black, Incl. power supply (PA-300C) and music stand