The YPT- features natural sounding voices including Stereo Grand Piano XGlite voices drum kits and a sound effect kit The YPT- also has accompaniment styles and built-in songs Use the Portable Grand button to instantly call up an authentic stereo grand piano sound The instrument also has a rich Reverb effect that adds concert-hall ambience to any performance The Yamaha Education Suite YES feature makes learning and practicing music more fun than ever before Some keyboards have two speakers but aren’t stereo Don’t be fooled Just because a keyboard has two speakers doesn’t mean that it’s truly stereo with two separate amplifiers All Yamaha Portable Keyboards feature stereo-sampling technology It has notes of polyphony and will play back different parts or sounds at once -part multi timbrel enough for the most demanding needs The music pathway to your computer and the Internet is MIDI It’s the way that keyboards communicate with computers And because the YPT- is both General MIDI GM and XGlite compatible you have access to thousands of MIDI song files on the Internet It’s the way to begin and play a musical instrument and a grand way to learn piano without occupying lots of space This model come with an AC adapter and can also be used as a portable when using optional AA batteries Reverb effect with different reverb types Jack for optional Sustain pedal Auto Accompaniment features MIDI in out Jack for optional headphone Dimensions – Width – x Depth – x Height – mm x mm x mm Weight – pounds ounces Includes AC Adapter or for portable use uses AA batteries not included LCD Screen more info