Casio Casiotone 403 Analog Synthesizer w/ Drum Machine (& OHSC)Casio Casiotone 403 Make all of your synthpop and bedroom rock dreams come true with this beautiful Casiotone 403 keyboard with built in drum machine. Made in Japan in 1982, this all in one analog synth sports a host of 80s features such as a built in drum machine with 16 different patterns as well as a drum fill button, chord sync and tempo mix settings. It has 25 built in sounds with vibrato and sustain settings as well as a built in speaker, but