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The Alesis Harmony 54 MKII Keyboard features 54 piano-style built-in speakers, 300 built-in sounds with layering and split functions, 300 built-in rhythms for playback, 40 demo songs, headphone input, music stand for sheet music, power adapter, and a microphone for singing while you play.
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.
