Tested. Good working. scratch on left side front. The Casio CTK-2100 is a 61-key portable keyboard with piano-style keys. It includes a step-up learning system, 400 tones, 150 rhythms, and 110 built-in songs. The keyboard features a sampling function with Voice Pads and an audio-in terminal for connecting external devices like MP3 players. It can be powered by an AC adapter or 6 AA batteries.
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