Alesis Harmony 54

54-Key Portable Keyboard with Built-In Speakers 300 built-in tones with layer and split modes One touch song mode with 300 built-inrhythms Play along with 40 demo songs or recordyour own Sing along with the included microphone 1/8-inch headphone jack mutes speakers for private practice Music rest supports your sheet music or tablet Includes a power adapter or power with 6“AA” batteries (not included)