The CS-MDV mkII is the world's smallest yet biggest sounding real vintage Univibe clone." It's the biggest sounding 'vibe we've ever made or heard, yet only draws 35mA of current. The mkII has an expression pedal out jack should you need it! It's 100% Analog, featuring 13 transistors, 4 x correct resistance and response photoresistor, a real &correct incandescent light bulb, and 30 years experience...you need the Fulltone CS-MDV mkII Features: "¢ 30% smaller enclosure than older MDVs, still with top-mounted jacks for tight spaces. "¢ Now has MUCH slower and MUCH faster available speeds (than all older Fulltone vibes) achieved by replacing the standard Speed pot with a Fulltone designed &custom-made Photoresistor, while retaining the original Univibe's unique Analog Oscillator circuit and 100% analog warble feel. "¢ It has twice the available volume as any vibe clone, assuring that you don't get bogged-down in the mix when you kick it on...without being bright and cold sounding, and a super-low output impedance so it is not affected by pedals that come after it and shines with the dirtiest of amps!"