The Yamaha PSR-E is an entry-level keyboard with a lot to offer First of all the PSR-E has full-size keys with Touch Response for the expressiveness of an acoustic piano For the absolute beginner this keyboard features the Yamaha Education Suite system with lessons including a Keys to Success function that helps you hone your skills You also get over songs to learn The Yamaha PSR-E keyboard has Flash ROM for importing standard MIDI files Now you can learn your favorite songs on the Internet Once youve got the hang of the basics the keybaord has a -track sequencer to record of your own songs with up to notes Use built-in voices rhythm styles including drum kits to create your own masterpiece The Yamaha PSR-E has reverbs chorus and types of harmony for genuine creativity with your sound The PSR-E can be powered by the optional Yamaha PA- AC adapter power supply sku or six AA batteries not included more info