Yamaha Portatone PSR-230 keyboard synth learning system w/Bonus cartridge. Made in the 1990's, fully tested with 6 D batteries and works great with a very dense dynamic sound. Basic specs: 61 keys, 100 styles, 100 voices, LED key indicators, recording, effects to manipulate tones, learning settings, MIDI in/out, 1/4" output, sustain pedal jack, 12V adapter jack(adapter not included), and much more. Cartridge has additional Songs & Styles not found in keyboard(I really like the Speed Metal style). Cosmetically keyboard has only a few minor blemishes here and there. As is common for Yamahas of this era, the rubber feet on bottom have become sticky, so clear tape has been put over each one. Check out my store for many more keyboards!