The unit does not lower in with batteries. Terminal appears loose and is missing battery cover. Unable to test corded power. The Vintage 1980s Casio SK-1 Electronic Sampling Keyboard Piano is a small, black electronic keyboard with 32 keys, designed for beginner-level musicians. Manufactured in Japan in 1985, this synth keyboard from Casio includes features such as built-in effects, a battery-powered option, and a speaker for convenience. The Casio SK-1 Electronic Sampling Keyboard is a unique timeless piece that offers a nostalgic touch to electronic keyboard enthusiasts.
eBay