Listing for a Logitech M570. The power suddenly stopped working, making it unusable. There are scratches and dirt from use. The items for sale are all shown in the photos; the receiver is not included. This item is listed as junk, so please purchase only if you understand that it is junk. [Product Overview] The Logitech M570 is a trackball mouse with an ergonomic design. It reduces strain on the wrist and provides comfortable operation. [Features] This mouse features a blue ball for smooth cursor movement. Also, the wireless connection keeps your desk tidy. [Specifications] Model Name: M570 Brand: Logitech Color: Black Ball Color: Blue CE Mark: Yes - Model: M570 - Brand: Logitech - Color: Black - Ball Color: Blue - CE Mark: Yes Thank you for viewing. Ergonomic design trackball mouse, equipped with 5 buttons for comfortable operability. - Brand: Logitech - Color: Gray/Blue - Type: Trackball Mouse - Number of Buttons: 5 buttons - Features: Ergonomic design Thank you for viewing.