Mitsumi Optical Wheel 3Btn PS2 Beige Ret mouse 400 DPI Mouse Retail

This optical system mouse that scrolls in response to rotations of a wheel and uses an optical sensor allows you to operate it not only on flat surfaces but also on your clothes comfortably.Both USB and PS/2 interfaces are supported. 1. Compatible with Microsoft wheel function. 2. Newly developed circuit enables 20% of current consumption reduction. (USB interface). 3. Detecting the tracking by Optical sensor. -Maintenance free Cursor operation is realized. -Expanded free-play operating range. 4. Scroll wheel is installed between the right and left buttons. -Simple scroll operation without using scroll bar is enabled. 5. The design is ergonomic and user friendly. -Improved fit feel for any size of hands and either dominant hand. -Offering less user fatigue caused by a long use. - Free play of the cable enables comfortable operation. 6. Supporting USB and PS/2 interface. *Various color of the exterior, trademark printing and other needs are available upon requested.