Soundsation K4U keyboard is perfect for beginners who want to start playing, but given the many features it has, even the most experienced musicians can have fun with this instrument. K4U keyboard has 61 touch-sensitive keys piano type, 422 different sounds, 210 accompaniment styles and 120 demo songs 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. It can play mp3 songs thanks to the USB Host connection to which a USB Flash Drive can be inserted. Audio playback is via two integrated 5 Watt speakers.