Casio CT-X700 Unboxing and Demonstration - YouTube
If you NEED this function, the Casio CT-X700 is not for you - YouTube
Amazon.com: LIANSUM 9V AC DC Adapter Power Cord for Casio Keyboard Piano AD-5 WK-110 WK-200 CTK-2100 CTK-496 LK-220 LD-50 HT-700 CA-100 CTK-710 CTK-720 Replacement Original Chargers AD-5MU / AD-5MR Supply Cable :
Amazon.com: Casio CT-X700 EDP Educational Keyboard Pack with Power Supply, Stand, Headphones, USB Cable, and Instructional Software : Musical Instruments