- Simply plug and play<br />- Smooth、 precise、 easy to use wheel for scrolling<br />- USB interface、 compatible with USB 2.0 and USB 1.1<br />- Cable Length: 120cm<br />                                                                                                                                Dimensions: 3.78 in x 2.2 in x 1.26 in<br />Weight: 3.32 oz