This item is being sold as junk because one button is not working. While there is some wear on the rubber parts on both sides, it is still usable. I tested the functionality before listing it. There were no problems with the buttons other than one. The USB receiver is included. It will be shipped without batteries. Please refrain from purchasing if you are sensitive to used items. Ergonomic design black wireless mouse, equipped with 3 buttons. - Brand: Logicool - Color: Black - Design: Ergonomic design - Number of buttons: 3 buttons - Connection type: Wireless Thank you for viewing. Connection method: USB receiver