This item was purchased as a secondary device "for working on the go," and has only been used about 10 times since purchase. It functions well, with smooth ball rotation and scrolling ring operation. ■ Condition Fully tested and working without issue. Ball rotation and scrolling are smooth. No noticeable damage to the exterior. Stored in a pet-free and smoke-free environment. ■ Included Items Main unit Carrying case (non-original) ■ Other Used infrequently and in overall good condition. Instant purchase OK. Will be carefully packaged and shipped. Returns not accepted to prevent product substitution. Connection type... Wireless (Bluetooth) Power source... Battery powered