Thank you for viewing. This is the ELECOM wireless trackball "DEFT (M-DT1DRBK)" with an index finger type operation. I purchased it new in October 2025. It has been used sparingly and is in overall good condition. ■ Condition ・Body: No noticeable scratches or shine ・Trackball: Operates smoothly, no sticking ・Each button/wheel: All functions confirmed to be working properly ・Operation confirmed *Please understand that there may be minor scratches due to it being a used item. ■ Accessories ・Main unit ・USB receiver ・Original box (The box has a slight dent) ・Instruction manual *Everything shown in the photos is included. ■ Features ・Trackball operated with the index finger ・Wireless (2.4GHz) ・Equipped with 8 buttons ・Uses OMRON switches ・Recommended for those who want to use their desk more spaciously, and for carpal tunnel syndrome prevention ■ Other ・Pet-free / Non-smoking environment ・Batteries will be removed for fire prevention, and the item will be carefully packaged and shipped.