Realistic Concertmate 200 = fully 100% identical to Casio VL-Tone - the classic cult mini synth from many big hits in the early eighties. This one is in an exceptionally good (never used?) state!!! This synth/calculator hybrid weighing in at under a pound has somehow found fame and fortune despite looking like a kid's toy. Its ultra cheesy sounds have been discovered and immortalized in the hit songs of such artists as Trio for "Da Da Da" and White Town. The Casio VL-1 or VL-Tone as it's also called has 29 little calculator-type button keys, five preset and one user memory patches, built-in rhythm machine (waltz, swing, rock, samba, etc.) and a 100-note sequencer. There is no chance at any external or MIDI control and there are no filters or effects. There is an LFO with vibrato and tremolo effects and an ADSR envelope. Specs: Polyphony - Monophonic Oscillators - 1 VCO LFO - Vibrato, Tremolo Arpeg/Seq - Sequencer: 100 notes, 1 pattern. Rhythm Machine: March, Waltz, Swing, Rock, Samba, Beguine, Bossa Nova Effects - None Keyboard - 29 tiny keys (with 3-position octave switch) Memory - 1 user patch, 5 preset sounds, 10 built-in rhythm patterns Control - None Date Produced - 1979 - 1984 Connections : mini-jack headphones output (3.5 mm mini-jack) Comes with original leather case No batteries included (4 x aa size batteries or a 6 vdc adapter can be used) The VL-1 is analog, it's tiny, it has a built-in speaker and a (useless) built-in calculator. The synth itself is quite small, light-weight and portable when running on batteries. Strangely, the simple cheesy sounds of the VL-Tone have been used by Apollo 440, Devo, the Talking Heads, the Cars, Dee-Lite, Sting, Stevie Wonder, Vince Clarke, Beastie Boys, The Human League, Trio, White Town, and Bill Nelson. Perfect working order! See pictures for perfect state. Now extra low shipping rates!