model : 49 Keys Roll up Electronic piano EP-K49D Relevant Parameters : 1.pucker function of electronic keyboard 2.49 standard keys 3.6 Demonstration songs 4.16 tone colors 5.10 rhythms 6.8 drum sets 7.Single Finger Chords/Finger Chords/Fill-in 8.one key one note 9.Record /Playback 10.16-stage volume adjustable 11.32-stage tempo speed 12.External phone output 13.External DC input N.W.:820g Dimension:keyboard 725*172*4mm console 92x213x27mm color box 280x180x80mm