This used Loog x Dualingo portable digital piano is listed in green and includes MIDI and USB-C connectivity in the product title. It may suit shoppers looking for a compact digital piano for casual practice, simple music creation, or a portable setup that is easier to move than a full-size keyboard. Free shipping is included, which can help when comparing total cost. Because the listing details are limited, this introduction focuses on the essentials provided: brand, model collaboration, color, condition, and connection types. If you are comparing options, check the listing for full details, including what is included, cosmetic wear, and any notes about operation or compatibility. loog | loog x dualingo Portable Digital Piano | Green | MIDI USB-C | LGPIADUOG. Color: Green, Width: 7.5 in, Condition: Used, Made in China. Listed at 199.00 USD. Loog x Duolingo | Portable Digital Piano | Green | MIDI USB-C | LGPIADUOG. Model: LGPIADUOG. MIDI over USB-C for easy connection to devices and music software. Connectivity: USB-C (MIDI). A compact, beginner-friendly digital piano built with solid wood side panels and a fabric top that lets the built-in speakers project sound naturally—designed to emulate the feel and tone of an acoustic piano.