61 Touch Response Keys. Backlit Custom Multi-Functional LCD. 320 Voices Including 4 Drum Kits. 100 Excellent Quality Automatic Accompaniments. Lesson Mode for Beginners. Dual Function to Play Two Voices Simultaneously. Record and Playback Functions. USB/MIDI Function. Pitch Bend WheelPower Supply: 12Vdc- 1000mA Dimensions: 655 x 360 x 145mm Weight: 5.5Kg. The Medeli M12 keyboard is perfect for beginners who want to start playing- but given its many features- even the most experienced musicians can have fun with this instrument. The keyboard is packed with features and has 61 touch-sensitive keys- 320 different sounds- 100 accompaniment styles- 100 demo songs and 100 tracks to practice playing. You can also add a sustain pedal (not included) for more authentic piano performances. Thanks to the USB MIDI connector- you can be connected to a computer for recording or additional tracks and effects. The sounds are played through two- clear- integrated 5-watt speakers.. electronic keyboard-keyboard