The Logitech M570 Wireless Ergonomic Trackball Mouse in dark gray with a blue ball is a comfortable and efficient pointing device for your computer setup. With a laser tracking method and a maximum DPI of 1000, this mouse offers precise and smooth tracking. It includes a USB Unifying Receiver for easy connectivity and features like a scroll wheel and battery status indicator for added convenience. The ergonomic design is ideal for right-handed users and the sleek black color with blue ball adds a stylish touch to your workspace. Perfect for those looking for a reliable and tested trackball mouse.

Barely used works great fully tested. Please see photos.