Alesis HARMONY61MK3 Portable Keyboard With Built-In Speakers - 61 KeysThe Alesis Harmony 61 MK3 keyboard has 61 piano style keys, built in speakers, and 300 high quality built in sounds covering a wide variety of instruments pianos, strings, brass, woodwinds, percussion, mallets, guitars, synths, even sound effects! You can layer multiple sounds together in Dual mode or split two sounds across the keyboard in Split mode. Harmony 61 MK3 also has 40 built in demo songs and 300 built in accompaniment rhythms that enable