http://www.rolandconnect.com/product.php?p=fr-1x
V-Accordions have revolutionized the music world, and Roland has dedicated itself to the ongoing development of these amazing instruments. The FR-1x series is the newest addition to the famous V-Accordion family. These compact, lightweight models offer the same flexibility and portability as their popular FR-1 predecessors, but add significant features, including USB functionality and advanced bellows-pressure circuitry for enhanced sensitivity and precision. With new-generation speakers onboard and an expanded 7-segment/3-character display, the FR-1x Piano type and FR-1x Button type set a powerful standard for a small lightweight accordion.