The Korg Monotron Duo is a compact, battery-powered analog synthesizer with a ribbon controller. It features two oscillators with tunable unison or interval settings and X-MOD circuit for added edge, a ribbon controller with scale selection, an analog filter from Korg’s classic MS-10 and MS-20 synths, and an aux input for filtering external audio sources. The built-in speaker and headphone output make it portable and versatile for live performance or private use. The device has five knobs, one switch, and a standby button for simple operation. With a weight of 95g and dimensions of 120mm x 72mm x 28mm, it’s easy to carry and enjoy analog sound anywhere.