The Goldtouch Left-Handed Semi-Vertical MOUSE in Gray color is wireless but The USB dongle  is missing from this  mouse designed for left-handed users, but it does include the side Flange. It features a semi-vertical design with adjustable DPI up to 1600. The mouse has 6 buttons, optical tracking method,  It also includes features such as on-monitor display, programmable buttons, ergonomic design, scroll wheel, adjustable weight, and on/off switch. The mouse is lightweight and easy to use, making it a convenient choice for left-handed users looking for a comfortable and efficient mouse for their computer setup.