Logitech M570, an ergonomic trackball mouse. I'm selling it because I don't use it. Operation has been confirmed. *Please refrain from purchasing if you are nervous about used items. *Returns are not accepted after arrival to prevent swapping of contents. *No price reductions. Prices may be lowered depending on the situation. *No dedicated listings. *The person who purchases the item will be given priority, even if there are inquiries. - Brand: logi - Trackball color: Blue - Trackball shape: Ergonomic - Number of buttons: 5 - Scroll function: Wheel scroll - Wireless connection: USB receiver - Design: Right-handed Thank you for viewing. Connection type...Wireless (Bluetooth) Power supply...Battery powered #logicool #trackballmouse