The ELECOM Mouse Wireless M-XT4DRBK Trackball is a wireless trackball mouse designed specifically for left-handed users in black color. With a sleek design measuring 3.5 inches in length, 5 inches in height, and 1.79 inches in width, this ergonomic mouse offers 6 buttons and a maximum DPI of 1500 for precise tracking. It features LED lighting for easy use in low-light environments and is easy to connect via wireless Bluetooth connectivity. The trackball design is ideal for users looking for a comfortable and convenient pointing device with a unique grip design.