The Logitech M570 910-001799 Wireless Trackball Mouse in black is a comfortable and ergonomic option for right-handed users. With a laser tracking method and five buttons, this mouse offers precise control and smooth functionality. The included Bluetooth dongle allows for easy connectivity, making it a versatile choice for various devices. The battery status indicator ensures you are always aware of your battery levels, while the sleek design adds a touch of style to your workspace. Perfect for those looking for a reliable and efficient trackball mouse. This item has small fading near the left clicker see photos for Details. Tested and works great.