Logitech MX Ergo trackball mouse, with USB receiver and pad. - Brand: Logitech - Model: MX Ergo - Included: USB receiver, trackball pad - Number of buttons: 2 buttons - Features: Trackball Thank you for viewing. I was using this without any problems until recently. I used it while working from home, so there is some wear and tear, but the functionality is not affected. No box included.