Logitech's popular trackball mouse, the M575 (black), is for sale. Purchased on Amazon in December 2024, I am selling it because it didn't fit my hand and I hardly used it. ■ Condition of the item Very beautiful, almost new condition due to very little use. No noticeable scratches or stains. Operation confirmed. Energy-saving design with a battery life of up to 24 months. Connectable via Bluetooth / Unifying. ■ Accessories Includes the original battery (used little). No instruction manual (body only). ■ Product Overview Model number: M575 Color: Black Connection: Bluetooth / Unifying wireless Number of buttons: 5 buttons Supported OS: Windows / Mac / iPad Domestic genuine product ■ Other Instant purchase OK. I will pack it carefully and ship it safely and quickly.