Logitech Wireless Trackball M575SP I've used it a few times, but I couldn't get used to the thumb operation, so I bought another one. I'm selling this one because I no longer need it. ▪️Condition ・Used a few times ・No operational problems ・There are minor scratches, but no major noticeable scratches or stains ・Part of the outer box is torn ▪️Product Contents ・Mouse body ・USB receiver ・Batteries ・Outer box ▪️Shipping Shipped via anonymous Yu-Packet Plus. Please consider purchasing only if you understand that this is a used item and has been stored at home. Please refrain from purchasing if you are sensitive to such things. −−−−−−−−−−− - Model: M575SP - Type: Wireless trackball - Brand: logicool - Color: Black - Accessories: USB receiver Connection type... Wireless (Bluetooth)