mini computer mouse 3.Lowest Price 4.Small Order acceptable 5.logo printing available 6.No mouse ball 1.Adopts optical orientation ... technology, high accuracy and reliability 2.Mini Size Design 3.With retractable ... 4.High resolution: 800 DPI 5.Button life: 3,000,000 6.Zoom in and zoom out function ... vista 11.Certificates:CE,FCC,ROHS MNI computer mouse