This vintage electric synthesizer keyboard set includes the CASIO SK-8 and CASIOTONE MT-70 models, both made in Japan in 1980. The SK-8 features a built-in sampler that can record and play back up to 0.8 seconds of sound, while the MT-70 offers 49 full-size keys and 20 preset tones. Both keyboards are in good working condition with minor signs of wear, and come with their original power adapters. Perfect for collectors and musicians looking for a unique sound, these CASIO keyboards are a rare find from the 80s.