This is the newly developed mini optical mouse with retractable cable that replaced the traditional wired mouse. Optical technology allows the mini optical mouse to track every motion with digital accuracy. Free you from having to connect cords that only permit motion within a   restricted space. Easy to install, just simply plug the USB plug to the USB port on your   PC/Laptop. Perfectly fit for your PC and Laptop, your best travel companion. Silky body whenever you touch it and you will feel it. With automatically retractable cord, up to 75cm and 2-button optical scroll mouse, 800dpi optical precision, USB interface, USB powered, no battery needed. No interference evens many mice being used at the same time. It is Reliable optical tracking sensor on almost any surface. This is Light and compact design, ideal for children and mobile users with laptops. Support plug-and-play. No driver required and it’s Support for Win 95/ 98/ 2000/ Me/ XP.