Casio CTK-240 home keyboard: Ok sounds, same as 30 years ago :/ - YouTube
Casio CTK-240 Product Specs and Info
Casio LK-240 61 Key Lighting Keyboard - Nearly New at Gear4music
Casio (CASIO) Electronic Keyboard Casiotone CTK-240 Slim & Compact 49 Keyboard 100 Tones 100 Rhythm Compatible with 2 Power Supplies of AC Power and Dry Battery Easy to See LCD Screen - Walmart.com