The original version does not have a USB interface;A variety of external functions, support MP3, microphone, as a speaker.16 kinds of sounds, 16 kinds of rhythms, a variety of sound rhythms to choose from, play a variety of instruments;40 demo songs to create a musical learning atmosphere;Sustain, vibrato, single-finger chord/multi-finger chords, fun play;Teaching function, in this mode, any key can be a song. Increase music interest and cultivate self-confidence ;Dual power supply mode, power supply (DC interface, voltage AC110V, DC9V) or 6-cell 5th battery (shipping without battery);Environmentally friendlly material ,meet ASTM F963-147 and CPC standardSPECIFICATIONS:Color: Pink,BlackMaterial:ABS PlasticVoltage:AC110V, DC9VRecommended Age: 5+Keyboard dimension:24''x8.3''x3''(lengthxwidth/height)Keyboard stand dimension:31''x15''x26''(lengthxwidth/height)Keyboard stand adjusted height demensions:4''Package included for keyboard(pink keyboard&Black keyboard)1 x Keyboard1 x Instructions1 x Music-Stand1 x Microphone1 x Charger(us plug)1 x Retail packagePackage Contents:(pink keyboard&Black keyboard with stand)1 x Keyboard1 x Instructions1 x Music-Stand1 x Microphone1 x Charger(us plug)1 x Keyboard stand 1 x Retail package