Mouse-Logitech M575 Ergonomic Trackball, Black

Logitech® Wireless Trackball mouse. Forget about sliding around a mosue or moving arms to move a cursor. Ergonomic sculpted shape minimized movement and maximized comfort while keeping your hand and arm relaxed. Scroll wheel with large, easy-to-reach Back/Forward buttons. Connect with Bluetooth® or USB Reciever to to 33 feet range. Uses 1 AA battery.