I'm selling a trackball mouse because I tried it for the first time and couldn't get used to it. I couldn't operate it well. I used it for about three months. [Product Condition] ・Used for about 3 months, but overall in good condition. ・Operation confirmed, can be used without any problems. ・Accessories: Main unit, receiver (※Please check the photos for details) Connection type...Wireless (Bluetooth) Battery operated ※Batteries are not included This is a recommended product that I think can be widely used in the office, at home, for telework, gaming, personal use, business, etc. --------------------The following is an explanation by AI-------------------- [ELECOM Trackball Mouse M-XT3DRBK] I am selling the ELECOM thumb-operated wireless trackball mouse "M-XT3DRBK". You can operate it without moving your wrist, so it's comfortable and less tiring even during long hours of PC work! Smooth cursor operation is possible with the high-precision trackball. It supports wireless connection (2.4GHz), creating a clean, cable-free environment. With the button assignment function, work efficiency is also improved. [Recommended Points] ✔️ Thumb-operated type that is gentle on the wrist ✔️ Comfortable operability with a high-precision trackball ✔️ Wireless connection for a tidy desk ✔️ Multi-button specifications to improve work efficiency