ship from Japan 5 button wired blue LED mouse with multi-functional yet simple design. Symmetrical, easy to use, simple wired mouse. The blue LED sensor, which is more sensitive than red optical, allows for smooth operation without a mouse pad, even on shiny desk surfaces. It is equipped with two buttons for ‘back and forward’ that can be operated with the side button at hand without moving the mouse pointer, allowing for speedy operation with a web browser. The cursor speed can be switched between 800, 1200, 2400, and 3200 counts to suit your application. It is a speed easy change only by pushing the count change button. Connector shape]: USB connector (A type) [Reading method]: Blue LED sensor method Button]: 2 buttons, 2 side buttons, wheel (scroll) button, count change button Size]: W62×D109.5×H40mm [Weight]: Approx. 82g [Cable length]: 1.5m ’ more