This used Yamaha P155 is a great starter keyboard for newer players, or someone looking for a portable alternative to an existing acoustic piano. With Yamaha's Graded Hammer keyboard, this is a great-feeling and great-sounding piano. Black with a mahogany top-board, the piano can blend with most rooms--or look great on its own. Connectivity includes line outputs to connect to external speakers, USB, and MIDI I/O. Power adapter and bench included.