品牌 三麦，中性 型号 SM-622适用机型台式机、笔记本电脑与电脑连接方式无线类型光电鼠标光电分辨率800（dpi） 按键数 3接口USB无线传输频率 无操作距离 0.6M SM-622.Newly hidden cable and Human engineering design. Retractable cable avoids extracable cluttering your workspace. Precision optical sensor ,super long working time. Hight resoluion : 800dpi. All kinds of color or rubber coating color avilable. Easy web navigatin and scrolling wheel .. USB and Combo ports avilable.Accurate on almoust any work surface excluding transparent or highly reflective surface