Innovative USB Finger Optical 3D Computer Mouse Finger Mouse design wear on the finger just like a ring, fashionable and stylish USB interface, Plug-and-Play, no installation needed. No mouse pad is required for this Optical Mouse, just slide the Laptop Mouse on any surface. Ergonomically design of this Notebook Mouse- reduce fatigue effectively Real hardware resolution 1200dpi – better choice of this Finger Mouse for professional designers and game fans Standard 3 buttons – left key, right key, scroll button included Digital encoder technology, operate precisely, prevent faulty movement effectively Textile coating cable (not rubber coating) – enhance free and easy movement Trouble shooting steps : The mouse might be unresponsive because you have it on a clear or shiny surface. The mouse needs a surface that is able to reflect the outgoing beam from the LED back up to the sensor in the mouse. Textured surfaces are better, because they allow the mouse to recognize movement easier. Choose a mouse pad that is not shiny or transparent. You can temporarily use paper or a folder of some type to place underneath the mouse. Your mouse settings may be disarranged in some way. To fix this, go to your control panel (Start Menu or Windows Key -> Control Next, go to “Hardware and Sound” and look under “Devices and Printers” (note that “Devices and Printers” may be directly accessible from the computer’s Start Menu). Select the “Mouse” option. The settings will then pop up on your screen. Select “Default” and then exit out. This resets your mouse settings to the normal settings. If this does not work, then try restarting your computer. Unplug, then replug your mouse back into your computer after the restart process has finished.